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Old 11-05-2012, 05:03 PM   #25 (permalink)
Z eliminator
A True Z Fanatic
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Join Date: Jul 2009
Location: Ontario Canada
Posts: 1,658
Drives: 370 Z 7AT Sports
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Z eliminator will become famous soon enough

mine did the same thing it sounded like a hammer hitting the back right side of the intake cover.
It was a cracked flex plate.
this happens when the torque converter comes loose.
the wheel is full of spider cracks .
mine was junk.
got lucly and they replaced it under warrenty.
go back to the guy who installed your engine and ahve him inspect your flex plate,
remove the bolt cover where the torque converter is ..

12.343 @114.14 . 4.5 stroker motor is now being built. Dec 1 2015.
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