chevy 454 had bad head gasket, now no compression - The 1947 - Present Chevrolet & GMC Truck Message Board Network

pwrunt3pte · 09-19-2010, 04:25 PM

had a bad head gasket on chevy 454 generation IV model. replaced it with a mls gasket and had the heads resurfaced and pressure tested. after putting everything back together, now the engine has 0 compression on all 8 cylinders. i adjusted the valve lash twice. what would cause this?

Number 9 · 09-19-2010, 04:45 PM

Quote:

Originally Posted by pwrunt3pte

had a bad head gasket on chevy 454 generation IV model. replaced it with a mls gasket and had the heads resurfaced and pressure tested. after putting everything back together, now the engine has 0 compression on all 8 cylinders. i adjusted the valve lash twice. what would cause this?

Timing gears out of time.

09-19-2010, 04:25 PM	#1
pwrunt3pte Registered User Join Date: Jul 2010 Location: jacksonville, florida Posts: 21	chevy 454 had bad head gasket, now no compression had a bad head gasket on chevy 454 generation IV model. replaced it with a mls gasket and had the heads resurfaced and pressure tested. after putting everything back together, now the engine has 0 compression on all 8 cylinders. i adjusted the valve lash twice. what would cause this?



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