Reason for blowing the rear main seal?
The rear main seal is trashed on the CRX, could positive crankcase pressure have caused it? My garage is a ------- mess now. :'(
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Re: Reason for blowing the rear main seal?
DING DING DING we have a winner.
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Re: Reason for blowing the rear main seal?
positive crankcase pressure can do it, and some other ideas are old seals, high revs like into the 8000s, and a damage crankshaft damper.
it would cause extra vibes that will ware out parts. |
Re: Reason for blowing the rear main seal?
I'll go with positive crankcase pressure and old seals.
The car is just freshly boosted (about 5 months) after sitting for almost 3 years. :) |
Re: Reason for blowing the rear main seal?
Definately dried out after 3 years of sitting. If i remember right, those are usually viton seals, which dry out very quickly and will rot if not kept properly lubed. Have fun changing that one buddy ;)
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Re: Reason for blowing the rear main seal?
Not my car, I didn't let it sit for 3 years. If I would have started the project it would have sat for 2 weeks. :)
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Re: Reason for blowing the rear main seal?
Might not be rear main - look very closely. I had crankcase pressure blow out the oil pan seal just below the rear main - I ended up dropping the transmission for absolutely no reason whatsoever.
Tip: Using rubber hose, even the oil-resistant OEM breather hose or fuel line, is highly prone to blockage. Just run the little $15 riceboy PCV filter sold at Autozone in the riceboy isle and be happy. All my excess crankcase pressures have been caused by the stupid little valvecover vent + me not wanting to 1) install a proper catchcan or 2) put a goofy riceboy PCV filter on the engine. |
Re: Reason for blowing the rear main seal?
Rear main is replaced. I might do the oil pan gasket tomorrow just for good measure before I put oil in it. :) I've already got a breather on the valve cover, but now I'm going for the catch can soon. :)
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