Rear main bearing tolerances

[Dave Wortley]

If you remove the crank for building up the crank journal it would be worth getting it crack tested. No point in doing work on it if it's going to let go! ( And the damage sustained on the rest of the engine can be expensive) I have used loctite 638 recently for worn down rear main journals but not had opportunity to test it yet. The best fit and forget solution would be a new crankshaft but of course this is not available for everyone's budget. Crack testing kits (Magnetic particle type are available from our cherished suppliers).They are inexpensive and easy to use.
Dave.