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Oil blowby

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Old 06-01-12, 01:11 PM
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Oil blowby

I'm currently getting a RX-7 it has about 206,855 kilometers on it and it has been parked for a while now. The owner says "When I parked it, it had a lot of oil blowby"

I was wondering what are the common causes of this in a rotary engine and now much of a job it is really to fix.
Old 06-01-12, 10:21 PM
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that means the motor needs a rebuild. The internal seals are bye-bye.
Old 06-02-12, 10:12 AM
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Engine, Not Motor

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It's just worn out.

Then again, it could be something VERY simple like a bad purge valve. If it doesn't smoke with the oil filler cap removed, then it's a purge valve issue.
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