Re: Ignition tester

[JOSEPH BRINCAT]

I have one of the "pressure spark testers" as well , hardly ever use it. Can anyone explain why spark jumping a gap under higher air pressure is any more of a valid test than spark jumping a larger gap in normal atmospheric pressure? I can’t see that there would be any difference.

Now, re- reading the previous post about the AC SPARK PLUG tester, I think that I can see some advantage in testing a spark plug under higher air pressure… maybe detect a bad seal or cracked insulator.

Joe B