High oil consumption

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paul92
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Post Tue Mar 20, 2012 8:29 pm

Having good compression of around 160lbs on all cylinders, wanted to refresh to head, ran fine on dyno and on track for half an hour, but used a sump full of oil, blowing blue smoke.
Don't think it can br the rings from previous compression test.
Anyone got any ideas ? :mad:
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kam-325i
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Post Tue Mar 20, 2012 8:32 pm

What engine is it ?
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gooner1
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Post Tue Mar 20, 2012 8:36 pm

Valve stem oil seals :?:
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kam-325i
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Post Tue Mar 20, 2012 8:41 pm

gooner1 wrote:Valve stem oil seals :?:
That normaly cause's blue smoke just after the engien is started, i cant see that much oil passing thru the seals in an hour, especially when there is no pressure behind it.....
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paul92
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Post Wed Mar 21, 2012 11:12 am

It's A 320, the head was a low mileage 80k, had a skim and a new cam only.
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kam-325i
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Post Wed Mar 21, 2012 9:50 pm

i would suspect a crack in the head somewhere.......
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Ant
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Post Thu Mar 22, 2012 6:02 pm

defective crankcase ventilation will make the engine burn a lot of oil.
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