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Input Shaft Bearing -- how much play is acceptable [video] #1009245
09/21/10 01:43 AM
09/21/10 01:43 AM
yodta  Offline OP
Rock Warrior
Joined: Apr 2005
Posts: 524
va beach, va
hey guys, check this out. have my transmission out for a clutch job and planning to speedi-sleeve the input shaft, and install new seal and also rear main seal while I'm in there.

was on the fence about getting a rebuilt Marlin transmission, but decided to just do the clutch for now and see if I can get by a while longer.

any of you had any experience rebuilding transmissions and would know by looking at this video whether this is too much play for that bearing?

[Linked Image]

Last edited by yodta; 09/21/10 01:43 AM.

msg - '87 xtracab - underexposed
From the Off-Road World
Re: Input Shaft Bearing -- how much play is acceptable [video] [Re: yodta] #1009246
10/02/10 12:05 AM
10/02/10 12:05 AM
yodta  Offline OP
Rock Warrior
Joined: Apr 2005
Posts: 524
va beach, va
just a quick note -- I installed a new seal in the front cover and reinstalled it. the play diminished significantly, as in, very little/next to none. I think the front cover stabilizes the bearing a bit, as it seems to have a recess machined to accommodate the snap-ring that holds the bearing in place.

I am, however, in the middle of pulling the transmission to replace the seal again. I nicked it slightly putting the front cover back on. I thought it was an unaffected area of the seal, but apparently not. got a nice dual-lip Timken seal this time.


msg - '87 xtracab - underexposed
Re: Input Shaft Bearing -- how much play is acceptable [video] [Re: yodta] #1009247
10/03/10 10:21 PM
10/03/10 10:21 PM
4
4runner4ever  Offline
Wheeler
Joined: May 2003
Posts: 126
the Netherlands, Europe
Its normal to have play. The centerpin slides into the small bearing in the crank stabilizing it.
There's only the one large bearing you see and a smaller needle roller bearing that goes into the secondaryshaft.


Black '90 4R

SAS with LC80 coils and LC70 high pinion axle
LC80 rear axle, coils and locker
4.88 gears
2JZ-GE+turbo+intercooler


Re: Input Shaft Bearing -- how much play is acceptable [video] [Re: 4runner4ever] #1009248
10/03/10 10:50 PM
10/03/10 10:50 PM
yodta  Offline OP
Rock Warrior
Joined: Apr 2005
Posts: 524
va beach, va
yeah, I thought about that, as well.

I was also surprised by the amount of play on newly replaced rear axle bearings about 10 years ago. I guess I always thought sealed cartridge bearings would be tighter than that.


msg - '87 xtracab - underexposed

Moderated by  4Crawler, kewlynx 

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