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slight smoke on over run
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Old 06 May 2012, 02:57 PM   #1 (permalink)
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slight smoke on over run

Hi folks, Im looking for some more experienced advice on my diagnosis.
Cars a my98 turbo 2000 and fairly standard
Recently I've done the head gaskets aswell as stem seals and all other gaskets, when building it back up I used a 50k bottom end I had from a 2002 bugeye.
Now the cars running beter than ever as you would expect, but occasionally after hard driving I get a bit of blue smoke on overrun. When the engine was out I checked the turbo for shaft play (roughly by hand) and there was little to none up/down left/right but slight in and out. turbos a td04 and holds 14psi all day long. Also the car has done 150000 miles.
Basicly what im asking is, does it sound like its worth my while getting a new turbo?
cheers in advance Gav
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Old 06 May 2012, 03:45 PM   #2 (permalink)
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Re: slight smoke on over run

It could be your valve guides too mate
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Old 06 May 2012, 04:17 PM   #3 (permalink)
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Re: slight smoke on over run

would'nt worn guides give the same symptoms as stem seals? smoke on cold start up and under load?
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Old 06 May 2012, 05:20 PM   #4 (permalink)
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Re: slight smoke on over run

Personally I believe worn rings cause smoke under load and valve guides on over run
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