TwinTurbo.NET: Nissan 300ZX forum - dunno about sgp or anything BUT
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Subject dunno about sgp or anything BUT
     
Posted by ztunerz on December 26, 2006 at 5:50 PM
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In Reply To here, input from engine pros welcome. posted by SpecNATT (Houston) on December 26, 2006 at 04:43 AM
     
Message I revently took apart a 4 k old motor with a light tapping that had the same exact problem in #3. It DOES have a reground crank. The motor was gently used. The rest were withen tolerence and looked almost perfect. Crank measurements were dead on accurate.

My guess is improper polishing of the crank on that journal.Incorrect grit or wrong direction of polishing - Anyhow i have never built a motor with a ground crank and this just reinforces my decision.

Harry

Formerly yellowzxtt

" If it doesn't make it faster, i don't care "
Please visit www.ztuner.com to GO FASTER

     
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