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Old 10-27-2007, 12:58 PM   #1
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Default burning oil smell / exhaust smell only on decelration

Do you think my seales are going on the turbo? I have a t25 sitting on a HKS mani. valve cover is vta. pcv checks ok. sometimes see light smoke on start up and prolonged idle. Head is fresh with new seales,ect
What do ya think?
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Old 10-27-2007, 01:32 PM   #2
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I'll post my reply to your PM here as well so others who search will find what I did when I had the exact same problem.

Like I said, I'm pretty sure my problem is the valve seals, but I don't have the time or money to do motor work, so I poured in some Lucas Oil Stabilizer with my next oil change and the smell/smoke went away. It only just started to come back, about 3500 miles later. Time for another oil change and some more Lucas.
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Old 10-27-2007, 01:44 PM   #3
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Typically, when a car has worn valve guides, or seal, it will puff on no load decel. If, however, the smoke runs up with the revs, then look for bad rings. But you certainly can't ruel out rings...

leakdown test will pinpoint the problem clearly, if the engine is fine, blame the turbo.
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Old 10-27-2007, 03:23 PM   #4
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I dont think its the valve guides. The head was re worked less than 2k ago
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