bmurphy7369
Jedi Trainee
Offline
I just purchased a decent compression tester kit to diagnose the XJ6's internals. This may be a dumb question, but is it truly necessary to do all of the "Professional Testing Procedures" such as grounding the HT Lead, etc. I always just thought plugging the guage in each spark plug hole one by one would give a compression reading. I know many of the steps are meant for modern cars with F.I. and lots of ignition components that the 1975 XJ6 doesn't really have, but the car does have an electronic ignition (OPUS type). I'm a bit hesitant now to just do the plug and read method, just wondering if I should follow the instructions completely or if I can verify compression by simply doing the one plug hole and crank/read method? Thanks for any advice,
Brian
Brian