Posted by Steve@Advance on October 18, 2018 at 12:41:27 from (24.182.105.179):
In Reply to: rear main seal posted by JimS on October 18, 2018 at 11:00:01:
A leaking rear main seal is often a symptom of a greater problem, typically loose main bearings.
Not sure how that engine is built, but if you have to remove the pan, be a good idea to check the mains, make an evaluation to the health of the rest of the engine.
Sometimes it's not the seal at all, could be the pan gasket, oil coming under the rear main cap (depending on the design), a galley plug, cam plug, or from somewhere above and running down. Also be sure the crankcase ventilation is clean and working. Excess blowby or restricted ventilation promotes oil leaks.
If you are the primary operator and caregiver, I have found letting the oil level drop to a quart low will sometimes slow or even stop a rear main leak.
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