Thread: Insert bearings
View Single Post
Old 02-01-2017, 05:58 AM   #13
BRENT in 10-uh-C
Senior Member
BRENT in 10-uh-C's Avatar
Join Date: May 2010
Location: Eastern Tennessee
Posts: 9,586
Default Re: Insert bearings

Originally Posted by CT Jack View Post
I have to ask Dave from MN a question. Is it possible the machinist preparing the block for the inserts didn't install the proper dimensions for a good fit for the OD of the inserts?Taking this possibility into consideration along with a tight bearing fit initially and also maybe the engine wasn't dynamically balanced properly could have all contributed to the failure. If this did happen it had nothing to do with the inserts.
I'm not Mr. Gerold, but you are very correct in that the OD tolerance is only 0.00025" either way, ...which takes a good machinist with good equipment to be able to repeat that 3 times per block. Not all engine rebuilders have the skill and/or equipment to pull that off. Babbitt is much more forgiving.

BRENT in 10-uh-C
...(...Finally Updated!! )

BRENT in 10-uh-C is offline   Reply With Quote