rod bearings...oversize/undersize?
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rod bearings...oversize/undersize?
alrighty, just got done replacing rod bearing in an 83 150. this truck i've been working on, the guy spun the #6 bearing. i put in the stock size bearing and there is a little slop in the 6 and 5. i told himthe get the big end reconditioned and turn the crank. but, he doesn't want to spend the cash on the truck cause he thinking of getting rid of it. he asked me if i could just put a bigger bearing in it. now if i do that i would have to get an undersized bearing right? any thought for some shade tree fix? thanks
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Joined: Jul 2003
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From: Meggett SC
Go the the auto parts store an get some PLastigage and measure the clearance between the rod bearing and the crank.
Desired clearance is .0008"-.0015" allowable is .0007"-.0024".
If it dosent meet this clearance get it machined. You could take a micrometer and measure the crank diameter and maybe find a bearing that was oversized to fit. But you better be sure the crank is round. In any case the out of roundness spec is .0006" Max.
Good Luck!
Desired clearance is .0008"-.0015" allowable is .0007"-.0024".
If it dosent meet this clearance get it machined. You could take a micrometer and measure the crank diameter and maybe find a bearing that was oversized to fit. But you better be sure the crank is round. In any case the out of roundness spec is .0006" Max.
Good Luck!
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