Re: Shimming Rod Bearing?
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Posted by Ken McWilliams on September 01, 1998 at 03:45:17:
In Reply to: Shimming Rod Bearing? posted by Tyler on August 31, 1998 at 22:56:02:
Tyler, In the old days the rod bearings were babbit. The babbit material was cast into the rod and could be recast when reconditioning. The bearing inserts used in rods and main bearings today are very precision to assure proper oil flow and dimensional control. The insert bearings are laminated with a soft material on the surface to act as a sacrificial material which will wear before the crankshaft or camshaft. If you shim a worn bearing, you may expose the harder layers of the laminate which will ruin the bearing journals. The replaceable bearings are too cheap to risk ruining a good bearing journal on a crankshaft. I would not recommend that you attempt to file the bearing caps. It was good for model T's with babitted bearings in the depression, but not for today's engines. Don't do it. Ken McWilliams
Dayton, Ohio
: I read somewhere that you can snug up a loose bearing, by filing the opposite
: sides of the bearing and putting shim stock of the right thickness behind the bearing.
: Has anyone heard or done this?
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