| Concept Cars | -- 01-10-2018 @ 2:29 AM |
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My 1936 Ford transmission was working well, but it was leaking. I disassembled, cleaned and inspected everything. I replaced all the bearings. I also replaced the idler and sliding gears because they had minor wear, I used identical parts. I changed the front bearing retainer to a newer one with an oil seal and replaced the rear rubber mount. During disassembly, I took the synchro apart, cleaned and replaced all the original parts. I did not take the main shaft apart, it appeared perfect and the gear was in excellent shape. After assembly I found that the main shaft had about 1/8” movement back and forth.I put back the original bearing retainer, rear rubber mount and gears, but I still had the end play. I don’t recall this end play before I took it apart, how much end play is normal?
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| juergen | -- 01-10-2018 @ 2:25 PM |
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It is surprising that Ford did not specify this in their repair manuals. It is as if they thought the U-joint bolt would hold the main shaft in place fore and aft. But I have found 2 rear slingers in some trans (.140) and also .140 spacers only a quarter inch wide after the usual rear slinger. So some old builders thought it was a problem. Even though there might not be fore and aft movement (if the input shaft is also tight with the front retainer), I think the chance of greater up and down movement under deceleration could be a cause of the trans jumping out of second gear (which is hard to diagnose). With 1/8 of end play, try the second slinger trick and see if you still have some clearance. After all, the cluster limits are .005 to .017
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| Concept Cars | -- 01-10-2018 @ 5:10 PM |
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An excellent suggestion, two rear slingers would take up the slack. Thank you!
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| TomO | -- 01-11-2018 @ 6:50 AM |
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Give Mac Vanpelt a call, he may have a fix for you. Tom
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| 40 Coupe | -- 01-12-2018 @ 3:38 AM |
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Have you installed the U-joint? Did you use original thick C clips on the front and rear bearings? This message was edited by 40 Coupe on 1-12-18 @ 3:39 AM
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| lawrie | -- 01-13-2018 @ 2:27 PM |
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One thing you must do is check that the front and rerar bearing retainers actually clamp up the bearings,most I do do NOT and require some machining to get this right. Lawrie
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| Concept Cars | -- 01-14-2018 @ 7:25 PM |
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Simply installing and tightening the u-joint solved the problem, thanks Mac.
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| Concept Cars | -- 01-14-2018 @ 7:31 PM |
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Simply installing and tightening the u-joint solved the problem, thanks Mac.
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