Pelican Parts Forums - Is it OK to re-use main bearings?

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- - Is it OK to re-use main bearings? (http://forums.pelicanparts.com/911-engine-rebuilding-forum/1157628-ok-re-use-main-bearings.html)

Quote:

Originally Posted by gled49 (Post 12197645)

On pull type clutches, you see wear on the thrust surface of the rear main bearing. If trying to reuse mains check axial crankshaft clearance and compare to specs. I check during disassembly to see where I’m at. Rare, but I’ve found crank thrust flange wear from clutch riding.

Yea I noticed that side of the thrust bearing is warn to the copper layer, so you are absolutely right about that, I think I need to replace at least the thrust bearing. All others are almost brand new with their date stamp showing 11/84 .. the engine is is '86 though.

Check the actual clearance of the thrust bearing. It may be showing copper, but the coating on the thrust face is pretty thin, so it may be well within spec.