[DeTomaso] NPC Trouble Shooting and Compression Test Question

[JDeRyke at aol.com]

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