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Author Topic: oil burning  (Read 877 times)

Offline weazgti

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oil burning
« on: 10 July 2009, 10:35 »
hi all

just bought another mk 2 gti but have noticed blue smoke from exhaust if i blip the throttle is this valve stem seals?
do they come in head set or do i have to buy them seperatly?
there is no mayo on oil cap but exhaust seems to be quite steamy when its not burning oil.
has my head gasket definatly gone?
« Last Edit: 10 July 2009, 10:58 by weazgti »
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Offline Conker

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Re: oil burning
« Reply #1 on: 10 July 2009, 12:42 »
You need a wet and dry compression test to help diagnose.

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Offline Wayne

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Re: oil burning
« Reply #2 on: 10 July 2009, 13:25 »
As above a compression test will tell you whats wrong.
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Offline Ben Lessani

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Re: oil burning
« Reply #3 on: 10 July 2009, 22:40 »
A compression test won't tell you anything about valve guides or stem seals.

A wet compression test will give you a miniature insight into the oil burning problem, but would still leave you pondering over whether its rings, bore wash, oval bores yada yada yada.

A compression test can tell you if the HG is gone - but only if it blew between cylinders, not if it blew between channels
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