1972 Chevy Chevelle oil drips from oil fill cap

1972 CHEVROLET CHEVELLE
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Engine Performance problem
1972 Chevy Chevelle V8 Two Wheel Drive Manual

Have oil that drips from the oil fill cap on a 1972, 454. Drops on the header, smokes and stinks and making a mess. Any ideas how to stop it?

Thanks for any help
Aug 27, 2010 at 3:39 PM
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RASMATAZ
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Check the condition of the cap if okay-check and test the positive crankcase ventilation system-start at the PCV valve
Aug 27, 2010 at 3:49 PM
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oil cap is in good condition, will replace the PCV. On a 454 should there be 2 PCVs (one on each side) or one will work fine?

Thanks for the reply
Aug 27, 2010 at 4:03 PM
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RASMATAZ
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There's only one PCV valve
Aug 27, 2010 at 4:05 PM
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RICKSS
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Replaced PVC and oil cap, after a 15 minute drive, problem back again, drips from the oil cap?

Any help???
Aug 30, 2010 at 8:39 PM
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RASMATAZ
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Sounds like you need to rebuild the engine due to excessive blowby
Aug 30, 2010 at 9:28 PM
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HMAC300
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if you have a gauge small enough take teh oil filler cap off and see what the pressure is . if it's above 3psi then something is pressurizing the engine like no breather or blowby. there should be a hose leading to the air cleaner with a small filter to let the engine breathe as well as pcv.
Dec 16, 2010 at 4:10 PM