C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

I need to know..

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Old Jul 8, 2004 | 02:08 AM
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Default I need to know..

Everything that could cause an oil leak from the top of the dipstick, and I know its not the pcv valve. The leak falls onto my exhaust manifold and smokes. There is no black or blue smoke.
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Old Jul 8, 2004 | 09:50 AM
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Blowby
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Old Jul 8, 2004 | 10:09 AM
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Originally Posted by loiq
Blowby
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Old Jul 8, 2004 | 03:14 PM
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Default I thought thats what it was...

thought thats what it was, but a mechanic told me that I would have black smoke coming from my engine if i was leaking past the rings.

Last edited by calebchoson; Jul 8, 2004 at 03:55 PM.
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Old Jul 8, 2004 | 09:03 PM
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can anybody help i really need to know because everyone tells me id be smokin black if it was my rings.
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Old Jul 8, 2004 | 09:16 PM
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Originally Posted by calebchoson
can anybody help i really need to know because everyone tells me id be smokin black if it was my rings.
Smokin black is usually rich exhaust. Oil consumption is usually blue.
Are you sure you are getting fresh air in and the crankcase gases back to intake ?
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Old Jul 8, 2004 | 10:31 PM
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Originally Posted by AGENT 86
Smokin black is usually rich exhaust. Oil consumption is usually blue.
Are you sure you are getting fresh air in and the crankcase gases back to intake ?
The car is running crappy and there is no colored smoke whatsoever, but when i push on the pedel the oil leaks from the top of the dipstick and nowhere else.
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Old Jul 9, 2004 | 12:13 AM
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What they mean is blowby is allowing gasses in the crankcase. The excess pressure in the crankcase pushes oil out of the dipstick tube.
A plugged PCV valve can cause the problem too.
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Old Jul 9, 2004 | 01:05 AM
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How do you know nothing is wrong with your PCV valve, you have excess pressure in the crankcase and its trying to get out, the PCV system is supposed to remove it if its functioning properly.
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Old Jul 9, 2004 | 01:09 AM
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I checked the pcv and its sucking really good.
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Old Jul 9, 2004 | 03:18 AM
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what other than the pcv valve causes blowby?My mechanic did disable the egr system.
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