Pilot Bushing Question
Thread Starter
Pro
Joined: Feb 2006
Posts: 529
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From: Waco TX
Pilot Bushing Question
When my BB came back from the machine shop the pilot bushing was not pressed all the way into the crank. I'm installing a new bushing that came with my clutch set-up. How far in the crank should the bushing be installed? The GM overhaul manual shows an illustration that indicates that the bushing should be flush in the crank. Any advice on this?
Thread Starter
Pro
Joined: Feb 2006
Posts: 529
Likes: 0
From: Waco TX
Do you mean the surface on the crank that the flywheel bolts to or the recessed area that is deeper than that? It seems like it would need to be flush with the recessed area. That is also what the illustration shows in the GM overhaul manual.
Le Mans Master
Joined: Oct 2005
Posts: 9,429
Likes: 44
From: Macon, GA
There is a small taper on the end of the crankshaft to allow easy installation of the bushing. Install the bushing flush to where the taper ends.
Le Mans Master
Joined: Dec 2003
Posts: 5,727
Likes: 38
From: Fremont CA
Flush with the recessed area of the crank. Make sure your bearing is "non-magnetic" if you can pick it up with a magnet, it may squeel after installation. Pioneer makes a true Bronze bushing most of th eclutch kits have CHEAP Chinese junk packaged with them. Non-magnetic=GOOD! Magnetic=BAD!
Thread Starter
Pro
Joined: Feb 2006
Posts: 529
Likes: 0
From: Waco TX
Flush with the recessed area of the crank. Make sure your bearing is "non-magnetic" if you can pick it up with a magnet, it may squeel after installation. Pioneer makes a true Bronze bushing most of th eclutch kits have CHEAP Chinese junk packaged with them. Non-magnetic=GOOD! Magnetic=BAD!
Also...anyone have installation tips? I don't want to have to do this a third time.
Pro
Joined: Nov 2007
Posts: 741
Likes: 1
From: Woodstock GA
Lots of parts store carry them, but you can call them at 601-483-5211 for a local distributor. I always tap them into place using a similar sized deep well socket.
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Thread Starter
Pro
Joined: Feb 2006
Posts: 529
Likes: 0
From: Waco TX
Thanks for the info. I'll give them a call. I used the socket method, I'm thinking that next time I'll put a bit of grease on the outside of the bushing.
Le Mans Master
Joined: Dec 2003
Posts: 5,727
Likes: 38
From: Fremont CA
Most automotive machine shops carry the Poineer line. You may want to measure the outside if the bushing and the hle in the crank before driving the next bushing in. There should be no more than about 0.003-0.005" of interference fit between the 2 pieces.
