RX7Club.com - Mazda RX7 Forum - compression testing

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JZS147

Dec 5, 2002 04:38 AM

compression testing

anyone have a link or who can give me simple instructions on doing one on a rotary engine?

thanks.

TonyTurboII

Dec 5, 2002 04:51 AM

Remove trailing plug. Pull EGI fuse. Crank car while holding the throttle down. Should see 3 even bounces with the valve on the tester held open. Look for 95psi plus on a healthy engine. With the valve closed it should build around 120psi.

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