I read in another thread that gapping the spark plugs a bit closer will cause them to run cooler. Recall that I have had the problem with a few spark plugs having cracked insulators. Another guy said that the idle would improve if I gapped them at spec or even wider than spec.
While I appreciate both people's opinions I wonder which is the best for my engine at this point. According to the thread that suggested that I gap them closer this advice was given by someone who once worked for Autolite or another major spark plug manufacturer. The suggestion was given as a way to prevent the insulators from cracking since the plugs would run cooler.
I presently have them gapped at .045 instead of .050 and it runs pretty good. The idle is even although I can feel the idle through the steering wheel. I always figured this was due to aged motormounts.
Any suggestions?
DB
