Msd distributor shaft end play. We don't have an exact replacment list for these shafts.

• Msd distributor shaft end play Measurement of the original gear location is required before removal to obtain a relative starting point. The end of the shaft is messed up, adn the gear. Ordered the Moroso #26140 Distributor 1/2" shaft Shim Kit which has five shims: two . 053" shims. pressed on his billet shaft and his cam got chewed up and was told to use the melonized gear by MSD but I read that MSD had a problem with there distributors chewing up cams several years back so I don't know for sure. If it's loose enough, points may end up not opening at all too. 500" diameter distributor shaft and GM offers a hardened distributor gear (GM-10456413) for a stock . New block, new crank, rods and bearing later, I won't be using the ARP shaft this time. Install a new spiral pin and recheck Process using a MSD distributor in a 351Windsor engine. Jul 31, 2020 #3 Cudakiller70 Well-Known Member. All the orings do is help stop oil seepage around the distributor shaft as it passes thru the oil galley. 023", so MSD Replacement Shaft for #8582 ASY11165. he has a high volume oil pump. 010 end play). The BOP gear has a note in the package that says they require . STEP 5: Press new distributor gear onto shaft. You will need to add a nylon distributor shim of correct thickness until the up and down play is achieved. 055" of uncontrolled rotor tip rotational movement. The oil pump load on the distributor gear thrusts the gear up against the housing, so that ensures the Lift the shaft to the end of it's end play and note the dial reading. Got a high end surge / miss I’m chasing Thx . The default is 10,000 rpm. This may have contributed to failure aso. It needs to go down about 3/16". I ended up special-ordering it through Summit, although it ended up being direct-shipped from Additionally, the ARP hardend drive shafts tend to be a bit long. hole in a Mk4 block is part of the main oil galley and sees full oil pressure. Thread starter DarkoStoj; Start date Sep 5, 2008; DarkoStoj. Sep 4, 2002 929 13 39 Detroit. Remove the reluctor. Along with imformation I got from SWC Duke to shim the dist shaft end play to . Had to cut pump shaft 1/4" on my build. Melonized (case hardened) distributor gears should be used with Selectively Austempered Ductile Iron (SADI) hydraulic roller lifter camshafts. I recently bought a used MSD distributor for a BBC and not knowing a whole lot about distributors, I held the gear on the shaft and grabbed the rotor and rotated it back and forth. damaging the shaft, gear or housing. Kato, I did notice that the bottom of my dist. 015 to . Estimated Ship Date: TodayLoading Estimated Ship Date: Today. This distributor replaces outdated points and bulky HEI distributors with modern, reliable technology in a compact and lightweight housing. Distributor Shaft - Pro Billet Distributor - Big Block Ford / Cleveland / Modified - Each More Details Part #MSD-ASY11145. Case in point: MSD's Street Fire distributor is made in China, much like this Skip White unit that I just picked up. and i'm talking about up and down play. 053" shim ; Part number: 26140 ; Package Weight: 0. Finally, I compared the ends of the two distributors to see what the difference was. Due to the helical cut gears every 0. If the iron distributor body heated by the engine head gets to be 102F hotter than the shaft then the 0. 1 Aug 2, 2020 #10 Scott19_72 Active Member. Summit HEI, it has the shorter shaft. Gear location on the distributor shaft is within MSD's spec. he has never checked distributor end play. The only way I can see right off to get what you are talking about is to have a small block oil pump drive shaft. It has roughly the same axial play, maybe a bit less. shaft end play per MSD's specs last winter. There is no lateral play but there is end-play [vertical]--feels like shaft gear is able to climb the cam gear so rotor comes up maybe 1/8 to 3/16 and rotates perhaps another 1/8 to 3/16 based on verticle movement between gears. the inner shaft moves up and down alot when you hold the outer casing. I have . Measure the distance between the base of the slip collar to the tip of the distributor shaft (Figure 8). 055" end play and cracked distributor cap mounting bolt holes despite the thing being aluminum. Shop Distributors at Summit Racing. I noticed long time ago MSD says meassure with end play pushed out. Gene I have read about bad Cardone rebuilds in the past,it seems they only do "cosmetic" rebuilds. com • (915) 857-5200 • FAX (915) 857-3344 1. MSD spec's it at . Bad427stang. My shaft slid up and The distributor shaft end play must be able to float when the gear is in contact with the trust flange and the housing is seated on the mounting flange. 080-. have? Mine has about . Distributor Shaft - Pro Billet - Chevy V8 - Each More Details Part #MSD-ASY15667. Man, you are havin' bad luck! If you are going to get the MSD distributor you should check the shaft end play before installation. 003, it has a thrust bearing retainer, without the bearing type retainer I fit them at . Whats the length of the distributor shaft of a 1973 318. 015-. I discovered a chipped drive gear on the distributor shaft and the shaft end play is 0. Measure the depth of the bearing surface in the block 4. Suppose to be about . 050” vs 0. X I have and MSD distributor, p/n 8456, for my EFI 1988 Ford 347 (stroked 302). 053" shim If you need the same iron gear I used (for my 0. If this is your first visit, be sure to check out the FAQ by clicking the link above. Actual shaft diameters vary from 0. I have the Distributor Gear Installation sheet that Paul has posted here more than once but the literature that came with the MSD replacement gear gives a different placement dimension than the one Paul posted. I did not push down on the shaft to take up the end play. On the drive shaft there is a ring type thing that goes around the top of it and that is probably what is stopping it, should I just push that down or can I Note: Before measuring, push the shaft in to remove all of the end play. 030", . 100". Ships QTY . So, it really doesn't look to be that different. Gear removal is quite simple. 010" range. The msd shims are for a nominal 0. 020" . MSD • WWW. Add to Cart Did some research and found that the 96-2000 requires a . Collapse. 060” with it fully dropped. Your idea of measuring the free play of the new distributor and adjusting the gear depth accordingly could work. One question, please, how much end play on the distributor shaft/gear? Too much end play timing change, along with the change in timing because of that scenario, WILL change jetting that is very, very close, to dead on, with more timing causing leaner conditions. MSD 8582 [7/8] Replacing the distributor gear. The tongue of the distributor shaft should ˜t into the groove of the oil pump shaft by at least 1/4". This could also be caused by worn lobes on To replace the distributor gear on the MSD Distributors, the following steps must be followed. I replaced the dizzy gears with a matched set and ended up using four of the shims. -Regarding Chev V-8 distributors I ended up measuring at the rotor tip for rotational slop. its a stock steel gear. With login and password. Is this normal? It's fairly new so I am assuming, just wanting some clarification. 500". One of the most overlooked things when building an engine or buying a box The dist. all of DOTARD's lies all the time, The 85561 MSD distributor has the Note: Before measuring, push the shaft in to remove all of the end play. 000 looks appropriate. MSDPERFORMANCE. For $80 dollars, The Skip White distributors I have used have a . You may need to change the terminals and boots of your wires. com • (915) 857-5200 • FAX (915) 857-3344 CENTRIFUGAL ADVANCE CURVE selecTIng The advance sPrIngs The rate, or how quick the advance comes in is determined by the type of springs which are installed on the distributor. If you are getting a new distributor, I'd even check the play on that. 2SS, GT2-108 Dougherty Cams, 9. I just kept grinding the bottom of the distributor away intill the ds had the proper end play (I think it should be around . 97 from Summit Racing. Mallory recommends a minimum of 0. MSD Distributors are supplied with the heavy (slow) advance springs installed. 020" shims and one . Sign In. I will be changing this (still using MSD) ignition systems but, I want to in the future fit a shaker when I up gun the engine HP. With the end play compressed 4. MSD makes a melonized gear for . Not good. Upgrade your engine’s ignition system for better performance and drivability with the MSD 8361 Street Pro-Billet Distributor. 005". 090 range. Fresh Air Systems; Gloves; Hans Head & Neck The proper overlap between the distributor shaft and the oil pump shaft is very important. 5:1 JE Pistons, Supertec What is the nominal and maximum end play allowable for the distributor shaft to the housing? 3) I have a ARP oil pump drive shaft in my 351W and for some reason the MSD Pro-Billet distributor won't seat all the way. By holding the gear drive, and twisting the rotor shaft while watching the pointer, you'll see how much centrifugal advance the dist. Using the bearing surface depth in step 1, add half of the free play measured in Every stock unshimmed GM dist I've seen had at least . '66 Fastback 289 C-code auto, older restoration, sold '03 Mach 1 manual, bought new, sold This is measured with the shaft end As has been stated: Are you shimming for distributor end-play where shims are added between distributor gear and distributor housing (over-rated) Obviously the latter is best achieved on a stand with no valvetrain or oil pump shaft in the mix. I wanna get rid of points So now I need a new distributor shaft, and cannot find one online anywhere. Use the installation/removal tool PN 83492 to prevent the shaft from turning (Figure 3). Sep 5, 2008 #1 Sep 5, 2008 #1 (excessive play when you move the distributor shaft to the left and right). Most MSD distributors are Before measuring, push the shaft in to remove all of the end play. TIG-welded on top of the polished steel shaft is MSD's accurate mechanical advance assembly. 024 to . This dimension can vary, but . My MSD unit didn’t need any but each application may vary. 015 end play One of the biggest contributing factors to spark scatter in high rpm distributors is the weight, balance and placement of objects above the upper shaft support bearing influancing When you get all done, check the top of the shaft (where the cam rides) for run out. The roller cam has an end play button. Additional information. 1. Easy, Bolt-In Installation The Street Pro-Billet is designed for simple installation. Most professional shops will factor looser than the factory specified gap for aluminum housings (. Note: The terminals of this Distributor Cap require spark plug style termina ls. The engine's been running great. As I pondered how to approach this I kept coming back to how they were instructing me to install the new gear. The only similar distributor reference I have is the one on my 64 Falcon vert. He said that they've seen many aftermarket oil pumps that are cut with too-shallow recesses for the pump drive shaft, causing the distributor to stick up a little bit. Product Description: Distributor Shaft; Pro Billet Distributor; Chevy V8; Sold Individually; Racers never stop experimenting as they search for every way to wring out more power or handling performance to to gain an edge over the competition. Their oversized shaft receives a QPQ Before measuring, push the shaft in to remove all of the end play. Are the factory distributors/gears different?" If the MSD Distributor cannot be made to work, I'll just sell it off to someone else. You need some end play but not much; just enough for oil to pass to the gear. I will include all part numbers at the end of this thread. Scott1ky Member. 025 (ish) end play, you would end up really close on the numbers when you push in (MSD) or pull out (ford)on the shaft. Note: Before measuring, push the shaft in to remove all of the end play. then look down into the hole and check the shaft end inside the engine. he has worn down the bottom 1/4" of the distributor gear 2 times. Remove distributor cap. Today I had to remove the nearly new MSD Pro Billet distributor from my 347 as it was faulty, causing severe Hopefully gravity will allow the shaft to settle fully in the pump but it would be nice to know there is minimum end play and the shaft would be amply seated in the pump even with it pushed fully up the dist. Install a INSTALLATION INSTRUCTIONS MSD IGNITION • www. The shaft was worn and I was sure it needed replaced, but what else it needed I would let them decide. SHAFT FOR 85561. 3L, PN 8580: 351C, 351M, 400, 429, 460 PN 8582: 289, 302, PN 8584: 351W I Set it to . NOTE: Replacement distributor gear does not have roll pinhole. The wear pattern on the dist gear is low on the gear, indicating the gear is too high on the shaft. 035” - Cam is cast iron flat tappet hydraulic and distributor gear is cast iron (Ford racing blue color coded gear) MSD • WWW. It should be within the specifications shown. I recently replaced my factory (crate assembly) Chevy ZZ4's HEI distributor with an MSD unit. Then I pushed the dist shaft to the other extreme and took the measurement. I've purchased 5 msd pro billet dizzy's from msd and not a one was set right, all were as sloppy as the neighborhood whore. Depending on the gear to housings clearance level raceman14 wrote: I only say that because the same test that yield +15-20HP by "zero clearancing" the cam thrust, vertical dist shaft play and timing chain slack yields an increase in 30-40hp in deceleration drag. I have a MSD distributor on it already fitted but what I found with it was the length of the distributor shaft, I can only fit a rectangle air cleaner on the carby. We use Moroso distributor gear shims to adjust the gap between the housing and gear. This product may not be eligible for select promotional offers. Tweet. drive shaft, so that wouldn't be a problem if I did go with a HV pump. That is more end play than they usually have as they come out of the box, but if you don't know for sure what anyone has done when they worked on it to put the gear on, it is still a mystery. 005" off the end of the shoulder to get it at . IS THIS A COINCIDENCE. Works with Moroso, GM, Accel, Chrysler, MSD and other distributors with 1⁄2" diameter shaft. 005" Max. Note: After reworking the HEI distributor I noticed that I have too much play in the shaft ,I can pull it up about 1/8 he has too much end play in between the shaft and the But you can lose power with it so loose that you have too much vertical slop in your distributor shaft end play. This was measured with a feeler gauge between the collar above the drive gear and body of the distributor. Also an issue the distributor bind. Distributor Play. 15 pounds › See more product details Signs that this is happening in your engine will be excessive wear on one side of the distributor gear, excessive play in the distributor shaft from worn bushings, and possibly damage to the cam. It's cheap insurance! When your distributor shaft end play and gear depth (MSD way and text book) are set correctly. Find FORD MSD Pro-Billet Distributors and get Free Shipping on Orders Over $109 at Summit Racing! MSD Pro-Billet distributors share the same CNC machining techniques as the rest of the MSD distributor line. Bottom of the dist. its a MSD HEI distributor. 035. Block mating surface to cam distributor shaft pilot surface measured 4. It was replacing a Mallory uni-lite. Posts; Latest Activity; Photos . MSD Distributors are supplied with the heavy (slow) advance Before measuring, push the shaft in to remove all of the end play. Checked the play in the distributor shaft based on a friend's suggestion. , EL PASO, TEXAS 79936 • (915) 857-5200 • FAX (915) 857-3344 MSD Chevrolet V8 Pro-Billet Distributor PN 85551, PN 85561, PN 8547 Important: Read these Instructions before attempting the installation. Could be the length of the shaft or tang on the one distributor, I've never seen anything like that. The MSD distributors 383 SBC. I want to convert it to electronic and a friend might have one but said there's different lengths. 015 ( min & max ) BUT watch where and how you tighten it up . Should have checked pump shaft free play long before you got to running the engine. The difficulty was the instructions simply stated that if the end-play was not in spec “modify the collar if necessary” and nothing more. You may have to register before you can post: click the register link above to proceed. This is with a MSD pro billet dist and if I leave the gasket off and set it in the motor, it drops Also, make sure the end play of the shaft is held to . I checked my MSD distributor in a bare block and 4. 007-. 491" distributor shaft, Those gears should be used with austempered 69shocktower, we have the same colour car,engine etc. It connects via just three wires – power excessive distributor shaft play, msd distributor. i have to take the shaft out again anyway because its getting gunked up and not MSD designed their billet distributor by copying a Chevy Delco distributor that had all the end play shimmed out of it so the shaft was 3/32" lower in the housing than the original Chevy design. I thought I read somewhere that washers can be add My msd distributor had a fair amount of side to side play in the shaft so i put the stocker back in. A "shim kit" (various thickness shims) is available from msd. Michigan Inventory: 5 Florida Inventory: 0. Please contact us if your distributor is not listed or not sure what shaft you need. I've only had the MSD crank trigger distributor. 5" long distributor shaft housing, whereas the VW shaft housing is only 2. I also started running there cap and rotor, these changes cured the problem and turned it into a reliable and easily tunable piece. Also What years distributors are interchangeable. 497". Note: An MSD Ignition is required with this Distributor. This was without the intake manifold and without the oil pump driveshaft. Out of curiosity, I removed the cap and rotor and discovered the same vertical end play as the old distributor that had given me nothing but grief. Some of that seepage isn't a bad thing though as it adds lubrication to the distributor / cam When your distributor shaft end play and gear depth (MSD way and text book) are set correctly. 7 lbs: Dimensions: 2. 050. 005 MSD Pro-Billet EFI Dual Sync Distributors Chevrolet V8, PN 2375MSD/23753; W/Slip Collar, PN 2376MSD/23763; Ford 289/302, PN 2377MSD/23773; of the distributor shaft should fit into the groove of the oil pump shaft by at least 1/4". This is even with checking distributor shaft end play along with proper height being checked. 025-inch). Is there anyway to tighten it For alum housing dist I always set shaft end play at . 035" is considered in spec. 024"-. 070 shaft end play and many in the . he now wants to try a bronze gear. 99. Free Shipping - MSD Pro-Billet Distributors with qualifying orders of $109. Cam end play was checked at the same time. Seems from a quick gander that with the . This indicates that the distributor gear is The shaft is longer, say about 8" then it will expand approximately 0. MSD IGNITION - Replacement Shaft For 8558 Distributor. Most professional shops will factor looser than Been reading and searching to lock out a 85805 sbf dist. Allows precise adjustment of distributor shaft end play to improve timing accuracy and reduce gear wear Works with Moroso, GM, Accel, Chrysler and other distributors with 1⁄2" diameter shaft Includes two . That is a starting point. 010-. That MSD spec is correct, it’s all I’ve used for years. The fix would be to machine a bit of the dist mounting flange; mesh with the oil pump drive should be checked to ensure there is no binding. 010- to . MSD Performance Forums. 5" long, 1/3 as long as the Chevy. Steven M Chasing a low RPM engine miss-fire problem with my 87 vert. 016-0. The only oil the distributor hole on a Dart block sees is from the end of the passenger side lifter galley. I spoke to an MSD tech. One of the most overlooked things when building an engine or buying a box shaft hole. 010" shims, two . gear when they use a HV oil pump. 95 Cobra #1679 Copy and paste link for my 363 thread An MSD Ignition is required with this Distributor. The problem is that when I hold the distributor by the body with one hand and the gear with the other, I can feel a minor amount of The dual point fuel injection distributor was capable of 8000 PRM without point bounce. See less See more Reactions: Torchhorse. raises a big red flag for me that something screwy is going on. When the gear is in the correct position, drill a 0. Just check that stuff out to be sure. either way it has a ton of play in it. After market dizzys seal with o'rings and mine had a paper gasket like old chevys used. GM sells the shims as does MSD etc. Ideally it will read . 018. 468" diameter distributor shaft) it's MSD part # 85832. 025 OF SHAFT END PLAY MSD OFFERS "ONLY" A . It lays on block and only about . If you don't usually as you install or remove the distributor the sharp edges around the oil galley hole will cut the oring in pieces. Founding Member. 226008 Fitting, Hose End, HS-79, 60 Degree, 8 AN Crimp to 8 AN Female, Aluminum, MSD replacment distributor shafts. A Chev distributor housing is ~ 9" long so the clearance will tighten by ~0. 029” OEM tolerance as stated by Ford Racing is . MSD distributor gear worn 180 degrees. 010 (I believe). 006 BIGGER BRONZE GEAR. Oct 22, 2008 #1 In my continued efforts to eliminate the idle miss in my 48 8n, I pulled the distributor off. 030" total main shaft end play,this can be measured with a feeler gauge at the gap between the bottom of the housing and the While a defect or seized bearing in the distributor could cause the problem, I would see how the shaft below the gear fits the block. Thrust Collar 4. Before measuring, push the shaft in to remove all of the end play. 020 for distributor endplay in a I have an MSD dist that I just had them service. The old one looks like both my distributors. I found that I had the same trouble with a MSD pro-billet distributor. Summit Racing SpeedCard - learn how to get 15% back up to $150. I previously measured my end play at . THIS IS REPLACEMENT SHAFT FOR 8365 AND 85551. There is a distributor shaft end play spec and an installed clearance spec i called msd and told them to send me a chevy size roll pin. If a distributor has too much end play, you shim it between the gear and the housing. It has a front mount distributor. 060", perhaps . 491" shaft and were of much tighter end play than a stock distributor, With all new bushings and such, the main shaft will have an end play of the main shaft on the lower end of the distributor in the . wont that wear faster. 015" deep. Price was $6. 045-3. The Chevy distributor has a 7. 010" shims, two . Breathe new life into your Small Block Chevy or Big Block Chevy engine with this easy-to-install distributor ignition kit! Kit Includes: (1) MSD 85551 Chevy Billet Distributor (1) MSD 64253 Digital Ignition Control w/ Rev Control, 6AL, Black According to MSD: “Coat the distributor gear with moly grease and install the distributor. $5 off $49 / $20 off $249 / $60 off $499 / $120 off $999* - Use Promo Code: Axle Housings, Housing Braces & Components; Ball Joints, MSD Ignition Distributor Shaft For 85561 See more product details. 005-. 491" shaft and were of much tighter end play than a stock distributor, MSD END SHAFT PLAY. If you need the same iron gear I used (for my 0. You could also consult with a mechanic or someone experienced with engine builds to get their opinion. Enter MSD. Measure the distance between the base of the slip collar to the tip of the distributor shaft (Figure 3). Carefully position the gear on the shaft to match the specifications given in the draw - ing. With this kind of response I will be asking more questions in the future. The distributor will not go all the way in. XRP-Xtreme Racing Prod. It's what Bill Jenkins used in his early "Toys". 022”-0. You haven’t by some mistake got a 302 distributor in a 351 block? Ignition Reluctor, Replacement, MSD Distributors, Keyed, +10 Degrees, -10 Degrees, Steel, Natural, Each. Includes two . Does anyone know the acceptable amount? It moves enough to drive the rotor into the cap contacts, so I take it its excessive. 020" shims and I just put a bronze gear on my MSD distributor. COM • (915) 855-7123 • 1-888-258-3835 CHECKING THE OIL PUMP TO DISTRIBUTOR SHAFT OVERLAP The proper overlap between the distributor shaft and the oil pump shaft is very important. Fwiw i run the performance distributors ignition module on my 95 cobra. From what you describe, the pump shaft and distributor shaft are too long/not mating and that is the issue. I noticed maybe 1/8 of an inch of play while turning it from side to side. Oh! If the advance mechanism has weaker springs, it may look like play in the gears. 007 and use 32 once points ,Accell makes them,I'm now able to pull 6000 rpm easy. My original distributor shaft has little to no play in it. When checking the new distributor I have noticed the shaft has a large amount of radial play at the bottom bearing area, I have,nt measured the clearance yet, but its large - and looks to be about . MSD Replacement Shaft for #8582 ASY11165. It will look like this. 006" over that temperature range. Pinging is more likely what you are hearing; it is very high pitched like tapping a very tiny In the context of distributor shim kits, these shims are specifically designed to fine-tune the height or position of the distributor within the engine block. They replaced the shaft, pick-up, and upper bearing and seal. 050 They indicate that the shaft end play must be between . 71 I run a MSD Pro billet distributor in my blown 79 Camaro. You say it has 1/8" end play with the retainer bolted on, what about the cam gear, with the gear off it will have all that end play, the length of the shoulder on the gear will determined the end play, my solid roller started out with . 015 end play and before I install it I would like to know if this is an ok tolerance. Please let me know if there are any specifications The proper overlap between the distributor shaft and the oil pump intermediate shaft is very important. Re: what is distributor end play? 01-21-03 08:00 PM - Post# 163714 In response to bigjimzlll i am taliking about installed and uninstalled. 020~ off the dist gear so it wouldn't bind the hei distributor shaft, i gave it a little play, like the motorcraft had, MSD billet distributors (and copies of MSD) have the same problem (the shaft is shimmed down too much), which eats the carbon button in the cap. 1961 - 1966 F-100 & Larger F-Series Trucks - TSP knock off MSD distributor - Already have an ignitor 2, flame thrower 2 coil, and plug wires from pertronix. 493" to 0. Carefully position the gear on the shaft to match the specifications given in the drawing. Allows precise adjustment of distributor shaft end play to improve timing accuracy and reduce gear wear Works with Moroso, GM®, Accel®, Chrysler® and other distributors with 1/2" diameter shaft Includes two . K Note: Before measuring, push the shaft in to remove all of the end play. Product Description: Distributor Shaft; Pro Billet Distributor; Small Block Ford; Sold Individually; Racers never stop experimenting as they search for every way to wring out more power or handling performance to This means that when end play is removed from distributor shaft, bottom gear face is lightly contacting machined thrust surface in block - Distributor shaft end play is . Add to Cart $99. They are not the same, so I have to assume that there is some difference in the distributors or gears. If a Chevy distributor housing is blueprint length from flange to bottom of housing, when the shaft is shimmed to minimum end play the rotor is at least . MSD is an industry leading manufacturer of performance ignitions. The magnetic pickup failed several times, but the last time MSD kept the thing for months, and gave me several completely contradictory and outlandish explanations. When disconnect-ing the battery cables, always remove the Negative (-) cable first and install it last. 016 and . he haS ALSO RUINED A DISTRIBUTOR MODULE ONCE AND A COIL SOON AFTER. Save Share it had zero end play and locked everything together. I have an MSD dist that I just had them service. They replaced the Excessive shaft play may make the car skip and stutter as well. block and/or distributor can occur. If it is not in the correct location, use a press to My distributor has up and down shaft play of around . Install a I can't speak to the 8594, but I had a truly bizarre experience with MSD over a defective MSD 8595, which I think is the same distributor but with the vacuum advance. Nylon distributor shims are available from Performance Distributors in thicknesses of . Carefully position the gear on the shaft to match the specifications given in the draw-ing. My machine shop guy Distributor shaft end play fail! I noticed my distributor making some weird noises. Damon Sea 1983 Mustang 534ci The MSD dimentions are with all the play in the shaft COMPRESSED and the Ford dimentions are with all the play in the shaft EXTENDED. MSD Troubleshooting. It took less than a thousand miles for me to notice a little tach bounce. 490 shaft. Anyone?? _____ 83 SC Targa -- 3. 090 (real loose). Allows precise adjustment of distributor shaft end play to improve timing accuracy and reduce gear wear. Any way check the shaft end play with the dizzy clamped down. When the gear is against the thrust flange, the shaft must be floating in the end-play without bottoming out in either direction, up or down. Distributor Shaft End play. the shim is usually reqired under the shaft head inside the Dist , NOT between the collar and body , doing it wrong is what shears pins more often than HV oil pumps( rams gear into the block), there is a depth measurment from the dist body to the flat surface of the gear 3. See less See more 2 stipulation nation. The TI distributor in my 69 had enough end play and bushing wear the end of the shaft moved like a football is shaped. Contents Timing Functions Choosing an Advance Curve Msd distributor change = no oil pressure. You can get shims at alot of of places to get it into spec. I'll go and take some measurements from the dist. I have read several places that . Typically from the factory end play is around . There is a distributor shaft end play spec and an installed clearance spec The instructions that come with the MSD gear indicates 3. Ignition Reluctor, Replacement, MSD Distributors, Keyed, +10 Degrees, -10 Degrees, Steel, Natural, Each. It works, but when I try fine tuning it with the Moroso weight and spring kit, it all gets either too sloppy, or, to get rid of the sloppyness, I must use too stiff springs for my application, to make the moroso weights swing in and aout as they are supposed to. Io. Thanks lacarrera Table of Content. Part Number: MSD-8627. As far as I know it is the original Falcon dizzy; I've had her since 1985 and have never replaced it. With the distributor removed from the engine they give a measurement of . If you are asking about moving the distributor up & down just machine the collar off & buy the MSD adjustable one, I do it all the time. Been having problems starting and keeping in time, so finally pulled the distributor. Jump to Latest 653 views 5 replies 5 participants last post by stangfever Apr 18, 2004. 6 × 18 × 1 in: Rod End Lube; Spray Adhesive; Spray Paint; Tire Treatment; Transmission Fluid; Wax & Cleaners; Safety. 10''. Save Share if you lay the distributor on it's side the shaft has enough-we'll call it end play-that the tops of the pins move away from the plate exposing a gap large enough for the weights to escape! I also recommend staying away from the Delco window distributors used in the V8 Larks as they are prone to excessive shaft end play due to the thrust washer wearing which will It has a magnetic pick up like the MSD Distributor. Thread starter Scott1ky; Start date Oct 22, 2008; S. 009 filler gauge goes in. Carefully position the gear on the shaft to match the specifications given in the drawing. 035 end play. 027 would be acceptable. Install a new spiral pin and recheck I put a new bronze gear on the dist. add shims between the gear and housing as required. To set the rev limiter, run the engine to half the desired rpm then ground the Gray Tach wire (a jumper is supplied) for MSD Distributors are supplied with the heavy (slow) advance springs installed. MSD Ignition DISTRIB. 030” of clearance so it measured 4. 027 in this case. This is done for expansion purposes, Distributor shaft end play must be larger than this so the gear can touch the block with no contact between the shaft and distributor housing. Shaft End Play. The rotor is lowered with the shaft and the spring blade doesn't touch the carbon button, same as happened when people shimmed a stock Chevy distributor to zero end play Too much end play in the distributor allows the gear to climb with increasing RPM and lets your timing change also, use the above mentioned 0. A friend just bought a new MSD 8578 Pro Billet distributor, to my shop, so I could put a melonized gear on it. This unnecessary clearance on the thrust bearing allows the shaft and gear to move up and down MSD • WWW. With the endplay of the distributor shaft removed, measure the distance from the bottom of the gear to the bottom of the all end play before mea-suring. 030". 008" , I removed . Is this common, or is there a correct way to do this? I'm building the motor to make power only to 5500 rpm - do I even need a HV pump? I already purchased a moly dist. Mine was over . The Mallory unit had a chamfer on the tang of the distributor shaft and the MSD did not. Important 1; Msd ford billet distributors 1; Parts included 1; Pn 8473 2 l pn 8580 351c 351m 400 429 460 1; Pn 85805 351w w edelbrock victor jr intake 1; Pn 8582 289 302 pn 8584 351w 1; Timing functions 1; As you can see from the chart most factors will change throughout the range of the engine operation the timing mechanism of the distributor must We use Moroso distributor gear shims to adjust the gap between the housing and gear. RB distributor shaft is longer. is set up for. 020", and one . ALSO HAVE . and set the dist. With the distributor installed I would also confirm there is at least some amount of clearance between the distributor and cam gears. 005. 030” per the shop manual. Fresh Air Systems; Gloves; Hans Head & Neck MSD IGNITION • www. P/N = MSD-8472 Does this mean that the hole is smaller, so that I could machine the distributor shaft a bit down to . 016", but any dimension from . With the extra shim behind the gear, I assume dist shaft end play has been optimised for minimal endplay. in too deep would point in that direction. 2. 019 with a fiber washer If you are going to get the MSD distributor you should check the shaft end play before installation. By adding or removing shims, technicians can achieve proper alignment and engagement of the distributor gear with the camshaft gear, ensuring optimal ignition timing and engine performance. So, with reservations as to shaft/gear end play, if that ISN'T a problem, I defer To measure end-play, I mounted the dist housing in a vice, set up a dial indicator so that it touched the bottom of the dist gear when pushed to one at one extreme, and zeroed it. It's possible that something jammed the gears in your oil pump and snapped off the end of your distributor shaft, or the oil pump intermediate driveshaft. shaft hole. msdignition. A MSD Tach drive magnetic pickup distributor will work just fine with your TI system. See less See more It has . X. MSD IGNITION Now I have a (China made) Skip White distributor bought 11 years ago. (The MSD distributors - especially the ProBillet ones - are really incredible things, BTW. Add To Cart How much end play should a 1111266 dist. They indicate that the shaft end play must be between . We don't have an exact replacment list for these shafts. 060" and . I ended up using a set of dist/cam gears from bulltear; i too had to take . I usually run the top o ring just to make sure any oil around the distributor goes toward the distributor gear and pan. 005 - I've disassembled, cleaned, lubricated and reassemble the Delco-Remy D204 distributor and I wanted to check shaft end play. 090", lower than the OE GM design. 015" is standard end play gap. Can (OEM compatible) gear for it, he said MSD knows the number. On after market distributors such as Mallory or MSD the shaft might be a little long and require some minor trimming. 10K 1,371. This measurement is not your problem, but you should probably check it anyway. 500" distributor shaft. The labor cost will most likely come out the I replaced the distributor gear on my OE Duraspark distributor (1978 ignition, 1971 460 engine). Below is a picture of where I checked the gap and what some have recommended the gap should be set at. Place it over the distributor shaft and fashion a pointer out of wire - the pointer should be attached to the shaft the rotor sits on. It would be easy to stick a distributor in with a crushed distributor gasket against a manifold that has been surfaced on a mill and end up shoving the oil pump drive gear against the bottom plate of the pump, trashing it. Using the bearing surface depth in step 1, add half of the free play measured in Another note, I see that the ford and MSD instructions actually are telling you different techniques as far as pushing or pulling the shaft when taking the measurement. If the clearance for the oil pump drive shaft was meant to reduce end play movement of the distributor shaft you would have problems. . When you get that distributor, don't forget to do the mods to make it work the way it should in a ZZ4 engine, like take the 69120 vacuum advance aid stop the degrees down to 10, so it will work on full manifold vacuum, and, speed the mechanical curve up, while retaining the 375 center plate and 41 weights, reset the main shaft end play to . 012" . have not had any more problems and i checked all shaft hole. Did I measure end-play right? MSD Distributors are supplied with the heavy (slow) advance Before measuring, push the shaft in to remove all of the end play. The correct part# is ASY-14550. To set the rev limiter, run the engine to half the desired rpm then ground the Gray Tach wire (a jumper is supplied) for AUTOTRONIC CONTROLS CORPORATION • 1490 HENRY BRENNAN DR. This is to Note: Before measuring, push the shaft in to remove all of the end play. If there is no up and down movement in the shaft, then the distributor is bottomed on the oil pump. 012, NO tighter, and for aluminum ones, between . Simply determine your gap and install the combination of shims to correct the end play. The distributor is designed in such a way that the shaft has some end-to-end play when installed in the housing. 488". If I recall for the sbc msd pro billet they recommend . You can go tighter but that's pushing it IMO the aluminum expands when hot. I don't want to pull and disassemble, check shaft end play. Install a new spiral pin and recheck Here are a couple of sets of instructions, one from MSD and one from Ford, showing the correct distance between the distributor gear and the housing, plus end play. shaft Distributor Shaft End Play Model A (1928-31) Not sure I stated things as clearly as I could have. 015-0. 125” hole through the distributor shaft. But here are my thoughts on the issue: May be binding on Factory GM distributors have . 3. '66 Fastback 289 C-code auto, older restoration, sold '03 Mach 1 manual, bought new, sold This is measured with the shaft end MSD 8582 INSTALLATION INSTRUCTIONS 7 MSD WWW MSDPERFORMANCE COM 915 857 5200 FAX 915 857 3344 Figure 11 Wiring with an MSD 7 Series Ignition and Timi MansIo Mans. 996 - 4. If Distributor-Shaft End-Play Test It seems that most HEI distributors have excessive shaft-end play. When the gear is in the MSD has end play removed/gear pushed toward cap. To obtain this measurement remove the end play by applying pressure to the shaft against the housing and measure from the bottom end of the gear to the underside of the distributor mounting Process using a MSD distributor in a 351Windsor engine. Parts Included: 1 - Pro-Billet Distributor 1 - Rotor, PN 8467 1 - Distributor Cap, PN 8431 (PN 83831) PN 8433 (PN 8594/85941) 1 - Wire Retainer. drilled gear and shaft in a drill press. Works just fine with the original TI amplifier, coil and wiring. 020" end play clearance for a Chevy distributor, to compensate for the thermal expansion of the distributor shaft housing. 040”. Will I need a different gear than Keep in mind that they do have to dissassemble the entire distributor to replace the shaft. Product Description: Distributor Shaft; Pro Billet Distributor; Small Block Ford; Sold Individually; Racers never stop experimenting as they search for every way to wring out more power or handling performance to MSD Installation Questions. 032" in this case. 200" end play and the dist. Gear is worn and the cam gear is wasted. You need to take the rotor off and turn the shaft without the mechanism moving. 025. I pulled it out and discovered I had 0. Details: Block and heads have been milled, distributor was shimmed up. 4. Remove the original spiral pin with a punch and press the original gear off the shaft. 2 INSTALLATION INSTRUCTIONS S • WWW. I pulled the distributor from the 390 in my 61 while replacing the oil pan gasket and oil pump. 020 end play number for an aluminum distributor, a little less for a cast iron one, as Since your old distributor had a bit of free play but seemed to work well, you could try to replicate that with the new distributor. "When I do a distributor shimming on a Chevrolet distributor, I set the end play for cast iron distributors at . 022"to . I can't speak to the 8594, but I had a truly bizarre experience with MSD over a defective MSD 8595, which I think is the same distributor but with the vacuum advance. Install a new spiral pin and recheck the measurement. He claimed there was nothing better with points. To have . 030 end-play. AUTOTRONIC CONTROLS CORPORATION • 1490 HENRY BRENNAN DR. MSD Ford Billet Distributors PN 8473: 2. First, measure the distance between the base of the slip collar to the tip of the distributor shaft. The Mallory dropped in easily, but I spent ages trying to get the MSD unit in. The first is the end play which can be felt if you hold the distributor cap body in one hand and attempt to slide the shaft up and down with the other hand. Post Dec 28, 2023 #7 2023-12-28T11:53+00:00. Does my distributor have too much end play? I'm not sure of any specs in this area. 005 to . 020" shims and one . 002 clearance will go to zero. With all new bushings and such, the main shaft will have an end play of the main shaft on the lower end of the distributor in the . Its for a hydraulic roller cam, 88 Ford Mustang. STEP 7: Check location of distributor gear on distributor shaft (see Figure 1). I have also also found if you have the correct end play on the distributor shaft. They feature a housing that's machined from high-quality 6061-T6 aluminum for durability and show-quality looks. Now after about 50 passes the gear teeth have deep wear marks from the cam gear, maybe . MSD closed for the long weekend. I have OE electronic and MSD. seat to the boss then measure the distributor itself. 010" -. The tongue of the distributor shaft should fit into the groove of the oil pump shaft by at least 1/4". I can't talk to the proper clearance. If too little play, as the metal expands, the shaft gets bound against the distributor body, making it difficult to turn and taxing the gears and, at the other end, the timing set. I have heard 0. Contacts; Forum; Ask a Question. Distributor Gear Shim Kit. I also found the original dizzy had the gear mounted to high on the shaft allowing about . I'm going to order another Prestolite dizzy, see if it has less end play. Pinging is more likely what you are hearing; it is very high pitched like tapping a very tiny MSDASY10039 by MSD IGNITION Distributor Shaft, Pro Billet Distributor. 013 inches of end play in the distributor shaft will give you 1 degree of timing variation in your distributor so you want to reduce the slop as The hole in the block pilots the lower end of the shaft and sets clearance between the cam and distributor gears, and the ball bearing (or bushing in stock distributors) in the top With the endplay of the distributor shaft removed, measure the distance from the bottom of the gear to the bottom of the mounting flange (Figure 1). There should be no shaft side play. Y-Block specs for distributors are in the 1957 ford shop manual. The rotor tip was contacting the cap electrodes, causing a clicking/tapping sound. If returning the distributor to MSD is not an option, a quality machine shop may also be able to install your new gear. 024” - . Contents Timing Functions Choosing an Advance Curve You can make a paper 360 degree wheel out of cardboard or paper. Joined Aug 3, 2016 You should still be able to freely feel the distributor end play. WARNING: Before installing the MSD Distributor, disconnect the battery cables. The gear is compatible with the roller cam. Replacement distributor shaft for MSD Chevy V8 Pro-Billet Distributor. *end play* on the distributor shaft results in 'ignition timing errors'. 060 to 090 thou end play and work just fine. MSDASY10039 by MSD IGNITION Distributor Shaft, Pro Billet Distributor. Brent Lykins, Lykins Motorsports Custom Ford FE Street & Race Engines Measure your block from the distributor housing (outside) flange down to the gear thrust flange (inside) above the oil pump. Then with a straight edge, measure the MSD Pro Billet Distributor MSD 8581 Bronze Gear . 045”-0. Compare your distributor shaft to a good one. Also not sure but pulling the shaft down there's some end play to make up the difference. 050'' and side to side around . 010", two . I have heard of some people having trouble with their dist. A drag engine distributor housing might not reach more than Is it okay to have basically no end play at all in the distributor? I recently had someone recurve my distributor and in the process he reshimmed the distributor shaft to take I purchased an MSD 8563 pro billet distributor and the BOP composite gear for my roller cam. so as little end play as possible, without unnencessary rotational friction, is better. STEP 6: Pull distributor shaft out of distributor housing to eliminate endplay (see Figure 1). Another pro mechanic was standing there at the parts counter and he said the same thing. Once I did that, I put the gear on the shaft and left it a little long, put the distributor in the block and let the gear find it's "home". -Quite commonly I find about . As far as corrosion on the reluctor wheel goes the best way I've found is to disassemble the shaft and reluctor from the housing by removing the roll pin on the distributor gear and soaking the reluctor in Evapo-Rust solution. Measure the end play in the distributor . 500 distributor shaft, where as the older BBC use a . gear is shiny as if it was rubbing the boss in the block. causing the MSD distributor to "bottom out" on the shaft, not allowing it to properly seat on the block. 0 out of 5 stars. Jim Horner I really don't know which is worse . 012 end play, I took it back to NAPA and the parts guy called his Ford tech buddy and he said that Ford distributor shafts will move (side to side) and are "locked" into place when you install it into the engine. All variations of all brands of distributors used on these engines are considered to have a shaft diameter of 0. Pulled the original out and dropped the MSD in. To check this: 1. COM • ( £x) nxÇ xÓää • A ( £x) nxÇ ÎÎ{{ Rev Limiter: The Ready-to-Run Distributor has a built-in rev limit that can easily be adjusted from 2,000 rpm to over 10,000 rpm. 008-. Weight. With no support that would tend to promote the failure you are having. There are several extra shims at the advance end of the shaft you can't see until it is disassembled, so there's no way to know if they are there or not. I've heard of others modifying a newer MSD distributor for this application. Big question, tear completely down or a thorough flush, replace the gear (if the cam gear is good), cross fingers and retry. zrfb yeoie kpgk mwea lhldxfj myjo hnrb vxfk eoxs aisa