TwinTurbo.NET: Nissan 300ZX forum - Smoking issue...continued
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Subject Smoking issue...continued
     
Posted by Paulym1111 on March 24, 2010 at 9:00 AM
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Message So I just replaced
timing belt/turbos/injectors/all seals and gaskets/underdrive pulley/dp's/tp's..no internals and my car was NOT smoking before the repairs and the old spark plugs have NO carbon buildup.

What I first suspected to be an injector leak is actually oil. the smoke not evident at idle, starts at about 2000rpm. There is no oil in the intake tubes going to the throttle bodies but there is a lot of burnt oil in the dp's. The spark plugs also have carbon buildup on them but not on the tips.

I have new NAPA pcv valves and im going to check and make sure all the restrictors and those brushes are in the hoses...could that cause this problem??

     
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