ThaddeusW Posted September 29, 2007 Share Posted September 29, 2007 Ok on a gas engine you just unscrew a spark plug and thread the gauge into the plug hole. On a diesel I assume that you have to pull an injector and bolt in a special adapter correct? Quote -Thad What America needs is less bull and more Bulldog! Link to comment https://www.bigmacktrucks.com/topic/2918-how-does-one-test-for-cylinder-compression/ Share on other sites More sharing options...
Rob Posted September 29, 2007 Share Posted September 29, 2007 Ok on a gas engine you just unscrew a spark plug and thread the gauge into the plug hole. On a diesel I assume that you have to pull an injector and bolt in a special adapter correct?You are correct Thad.A diesel compression tester gauge is of a higher reading, (usually 1000 psi) also, as opposed to the gauge used for a gasoline engine. I'll post a picture of mine later this evening when I'm back at the shop. I paid 169.00 for a kit to do most heavy diesel truck engines by S&G Tools from a wholesale tool outlet about five years ago. It has about eight different adapters for different engines.Rob Quote Plodding along with no job nor practical application for my existence, but still trying to fix what's broke. Link to comment https://www.bigmacktrucks.com/topic/2918-how-does-one-test-for-cylinder-compression/#findComment-14228 Share on other sites More sharing options...
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