TwinTurbo.NET: Nissan 300ZX forum - Before pulling the motor, which may be inevitable
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Subject Before pulling the motor, which may be inevitable
     
Posted by TTZEDHEAD on October 28, 2012 at 10:28 AM
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In Reply To Do you all agree that I should pull the motor out ASAP and posted by tt_703 on October 28, 2012 at 09:52 AM
     
Message It may be safe to say that your rings and cyl-walls are glazed at this point and may not seal properly BUT.........With nothing to lose and the threat of a rebuild anyway.......I would try this:

go to a dyno

Fill tank with at least 110 R-gas------the reason being is that although you aren't tuned for it, the additional oil/blow-by will lower your octane level.

Try about 10 pulls adding timing and boost while monitoring AFRs and of course adjusting for Knok.

The idea here is to Thoroughly and dynamicly heat cycle the engine in a controlled environment. If there is any hope of seating the rings properly, it will happen here.

Again, you have nothing to lose.

Good luck

Twinzpic3


     
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