1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Marred input shaft from pilot bearing

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Old 08-22-06, 04:48 PM
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Marred input shaft from pilot bearing

I just removed the transmission from my 84 GSL-SE and the pilot had siezed to the input shaft. After a battle with a dremel I managed to cut it off only to find the input shaft was very marred up from the needle bearings. My question is, should I / can I buy a new input shaft and just replace mine or should I take it out and then take it to a machine shop? Any and all advice is appreciated
Old 08-22-06, 04:55 PM
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Burning Oil-Grinding 3rd

 
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I had one like that, I just hit it with some scotchbrite and put it back together. No problems so far. Maybe a pic to show us how bad it is?
Old 08-22-06, 05:03 PM
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Replacing the input shaft requires a teardown. Smooth it out and hope for the best.
Old 08-22-06, 05:18 PM
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Old 08-22-06, 05:32 PM
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That looks quite nasty. Lots of time with emery cloth *may* save it. Otherwise, you will need to get a different trans, or spend quite a bit of money for parts/labor to have the input shaft replaced.
Old 08-22-06, 07:39 PM
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BEFORE:



AFTER 3 different grit Dremel Sanding Wheels, Emery Cloth, Carbine Wire Wheel, Blood, Sweat & Tears:

Old 08-22-06, 07:42 PM
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Excellent work, looks like you are good to go.
Old 08-22-06, 09:02 PM
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Make sure the new bearing will freely move on the shaft. You have just seen the reason I always remind people to grease that bearing before installing the trans.
Old 08-22-06, 09:26 PM
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Any particular grease that you would recommend?
Old 08-22-06, 09:29 PM
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Wheel bearing grease.
Old 08-22-06, 09:32 PM
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Originally Posted by trochoid
Wheel bearing grease.
Bingo!
Old 08-22-06, 11:08 PM
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Wow, I just smoothed mine out a bit, yours should be better then new.
Old 08-23-06, 12:57 AM
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So I get this new clutch and they put this little card in it and one of the bullet items is this:

* NEVER lubricate the pilot bearing or bushing. They are already pre-lubricated. Lubrication of the bushing can cause the input shaft to fuse itself to the pilot bushing.

... I think my clutch manufacturers are smoking something.
Old 08-23-06, 01:10 AM
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Is your new bearing a needle one or the impregnated solid one, and did it come with an oil seal?
Old 08-23-06, 01:45 AM
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It is a needle one and it has a seperate oil seal I assume goes in after installing the bearing.
Old 08-23-06, 09:52 AM
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lube it anyway, the wetter the better
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