[QUOTE=jp75vette]Finally got that pilot bearing out. It was stubborn. The dremel did the trick. [/QUOTE]Jack, I'm glad things worked out. You are a wise man "in freezing" the new bearing. That shinks it enough for an easy install. You know your "stuff"


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If you have odd wear, you may want to check the flywheel runout as well.

Thanks for the tip on the flywheel run out. We will have a warm spell in MIchigan on the weekend, so I will check the runout on the flywheel first and then the bellhousing.

Another, more common issue with odd wear on the pilot bushing is driving habits...
If you like using the engine to slow you down, rather than the brakes, it can wear the pilot quicker than normal, and usually makes the center of it oblong, instead of round.
When downshifting, the input shaft of the trans is spinning waaay faster than the engine rpm(until the clutch is fully released)...this causes rapid wear of the pilot. Eventually, the input shaft just basically starts flopping around in there, thus the un-even wear.
Just an added speck of info...

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Joel Adams
C3VR Lifetime Member #56    
My Link


(click for Texas-sized view!)             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"

here is my custom tool i built

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http://www.vetteprojects.com/bmv

Just replaced my pilot bushing and I drilled 2 holes in sides then split bushing and it fell right out. I also had flywheel cut down it had a bad spot. I was getting a loud rumbling noise when clutch peddal pressed in and engine reved up. I hope this fixes my problem :)

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A worn pilot bushing/bearing will definitely make that noise...with the clutch pressed in, revving the engine will let the input shaft flop, and make a grumble noise as it beats itself against the sides of the worn bushing. I bet the fixes the noise.

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Joel Adams
C3VR Lifetime Member #56    
My Link


(click for Texas-sized view!)             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"

I sure hope so, Now I cant get it in reverse with safety Switch cable  hooked up from steering column. I didn't change anything. when Cable hooked to reverse arm its not in reverse. I'm confused don't know what I did? I'm heading down to garage and check it out.

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All fixed and good to go, I just forgot to set shifter in reverse before hooking up linkage :) Old age is my guess ! just in time for my week vacation next week SWEET time to go CRUZn ........

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Link no worky.


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FWIW there's a Chevy pilot bearing w/ needle bearings in it.  Should outlast the engine.  




|UPDATED|6/25/2012 11:02:51 AM (AZT)|/UPDATED|


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1973 L-82 4 spd