Ratteling Getrag
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Joined: Dec 2004
Posts: 4,312
Likes: 1,063
From: Commerce, OK
I had an old Dodge dart with the same symptoms. It would rattle in neutral with the clutch out but not with the clutch in. I figured it was probably either the input bearing or the pilot bearing. I sold the POJ before I had a chance to find out though.
I have read that the crank can be bored out to accept a ball or needle pilot bearing. Can this be done without pulling the engine/crank? Is there a kit for this. The bronze pilot bushing seems to be a weak point.
I can see where the t/o would cause extra wear and even damage to the pilot sleeve it rides on but surely the operator would nonice the noise way before this. But then some people will endure the noise until something major breaks, usually at high speed.
Edwin
I have read that the crank can be bored out to accept a ball or needle pilot bearing. Can this be done without pulling the engine/crank? Is there a kit for this. The bronze pilot bushing seems to be a weak point.
I can see where the t/o would cause extra wear and even damage to the pilot sleeve it rides on but surely the operator would nonice the noise way before this. But then some people will endure the noise until something major breaks, usually at high speed.
Edwin
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Joined: Oct 2005
Posts: 6,457
Likes: 95
From: KENTUCKY
The pilot bearing versus pilot bushing argument has been kicked around on dozens of websites.
I go for the bushing.
Reason being, when a roller-bearing gets hot, for whatever reason, it melts the grease out of it; then, it seizes up, spins on the input shaft of the transmission, and really buggers it up, necessitating transmission being tore down to replace the shaft.
I have seen bushings in really bad shape, yet do no damage to the transmission.
You can drive a long ways with a bad pilot bushing; you will most likely have to call a wrecker with a bad pilot bearing.
I go for the bushing.
Reason being, when a roller-bearing gets hot, for whatever reason, it melts the grease out of it; then, it seizes up, spins on the input shaft of the transmission, and really buggers it up, necessitating transmission being tore down to replace the shaft.
I have seen bushings in really bad shape, yet do no damage to the transmission.
You can drive a long ways with a bad pilot bushing; you will most likely have to call a wrecker with a bad pilot bearing.
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Joined: May 2006
Posts: 332
Likes: 4
From: Silycon Valley
Depends how bad the pilot bushing gets.... I have seen a bad pilot bushing completely destroy an NV4500..... not common, but any wobble in the input shaft is a bad thing for the tranny.
When the clutch starts slipping that can be due to tranny fluid comming out of the input shaft seal and drenching the clutch. You will probably be able to driv it home in that condition but the tranny will already be done for.
When the clutch starts slipping that can be due to tranny fluid comming out of the input shaft seal and drenching the clutch. You will probably be able to driv it home in that condition but the tranny will already be done for.
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