[DeTomaso] NPC Trouble Shooting and Compression Test Question
JDeRyke at aol.com
JDeRyke at aol.com
Sun Mar 4 14:54:14 EST 2012
My best guess- First, they cannot do a compression TEST without pushrods
but they CAN do a compression leak-down test which does not depend on turning
the engine over.
Second, it's common to do a valve job on a well worn engine and immediately
on firing it, break the old rings from the suddenly higher compression. Oil
smoke will pour out. I learned this the hard way on a Falcon engine and
later a Chev V-8 eons ago. Engines usually cannot be piecemeal-overhauled with
any hope of success even if you're poor, but they'll find out what's really
wrong with their leak-down test. Good luck to your neighbors, Tom- J Deryke
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