Leaky valves?

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Jul 8, 2009

levyfamily3

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Leaky valves?

Need to know if I need to replace valve seals. Engine is 2000 civic si b16 doch. Few misfires, straight pipe no cat. Blueish, grey smoke when I downshift and when I come to a complete stop.

Last edited by levyfamily3; Jul 8, 2009 at 05:06 PM. Reason: different title

Jul 8, 2009

gearbox

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Re: Leaky valves?

yes if you are burning oil

Jul 9, 2009

sql_civic

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Re: Leaky valves?

You could be burning oil from bad oil rings.

Jul 20, 2009

JREJ8

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Re: Leaky valves?

compression test it. if the test reads low cylinder pressure then pour alittle oil into the cylinder though the spark plug hole and retest. if the pressure rises then you have bad piston rings and you need a rebuild. if not then you have bad valve seals or a bent valve or something in the head wrong.

Jul 20, 2009

JREJ8

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Re: Leaky valves?

but yes you are burning oil for sure:
blueish smoke: burning oil
black smoke: running rich
white smoke: Burning coolant/water.

Jul 20, 2009

denice25

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Re: Leaky valves?

replace it when they have leaks... or try to compression test first...

Jul 20, 2009

TRIZ

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Re: Leaky valves?

I think I have a head gasket rebuild kit for a B18. I could double check it your interested. It has everything, head gasket, valve seals, every other kinda seal, etc. I bought it on accident when looking for a D series one. Its unopened.