main bearings, preferred manufacturer |
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main bearings, preferred manufacturer |
930cabman |
Nov 27 2021, 09:55 AM
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#1
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Advanced Member Group: Members Posts: 3,138 Joined: 12-November 20 From: Buffalo Member No.: 24,877 Region Association: North East States |
I recently purchased a standard size main bearing set from a large vendor, checking the clearances I am finding this new set will provide a clearance at the high limit per factory specs. My crank is spot on, but the main bearing ID appears too large. I can easily fit a .004 feeler between the crank and new bearing ID. Just for fun, I tried an old (used)main bearing and found it to have a smaller ID (by about .0015) than a new one. Am I missing something?
Thanks |
930cabman |
Nov 30 2021, 11:26 AM
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#2
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Advanced Member Group: Members Posts: 3,138 Joined: 12-November 20 From: Buffalo Member No.: 24,877 Region Association: North East States |
Crushed!!
I may have known this in the past, but with 69 years of crap between my ears, who knows? I did get a good measurement on the OD of a crushed main bearing and a new Silverline main bearing, about .0015 difference. Given this, the actual bearing clearance would be in the .0025 range. My next step will be to assemble the crank with new main bearings and clamp everything together in the case and see how she spins. Plastigage will work for bearing #2, but not the others. Thanks for the replies |
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