longer the bottom of the plug the colder…that correct?
i’m having a hell of a time getting plugs for the motor in jims truck i keep getting different ones every time i look it up for a dif year but i’ve settled on AC’s R44t’s from what i can tell it’s got 3 different length plugs (not ceramic section the metal section) in it and i was told that designates heat range.
what’s the difference in heat range? i can’t imagine them bein colder…they a hotter plug? what’s the benefit cuz i got 2 of these damn engines here and both have r44ts
well the autolites that were in there (while trying to get the truck to run) no longer arc off the electrode but off the tip instead they’re all screwed up and half don’t fire…they’re only 3 days old