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How To Remove A Reluctant Pilot Bushing From The Crankshaft

Sun Aug 05, 2007 6:53 pm

The following pictures document my success at extracting my "reluctant" 48 yr. old clutch pilot bushing from its housing. Thank you, Bigdog for all your encouragement.


My tools, clear & simple: 3/4" X 10 tap, 3/4" X 4" bolt (3/4" X 6" bolt w/ 3" of thread would have been a better choice and eliminated the need for a socket used as a spacer.), 12" tap wrench.
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The careful chasing of threads in the worn bushing begins. Notice my arched block & wedges to immobilize the fly wheel.
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Threads have been chased & thoroughly cleaned (I removed tap several times for more complete chip removal; WD-40 for lubricant)
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Bolt threaded in w/ 1/2" drive ratchet and 1 1/8" socket; bolt end bottoms out; bushing begins its forward movement.
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Forward progress visible; almost effortless extraction.
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More than half way of its 1" of travel.
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Almost effortless extraction; absolutely no damage anywhere. Notice 1/4" socket in hole, used as spacer for more thread travel. This would have been unnecessary if a 3/4" X 6" bolt w/ 3" of thread and been available.
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Perfect side wall clearance.
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