Cracked spark plug boot
Thread Starter
Le Mans Master
Joined: May 1999
Posts: 6,692
Likes: 29
From: Texas
Cracked spark plug boot
Found that one of my spark plug boots has a small crack around about 1/3 of the side near a header. No sign of "burning", etc. Its an 82 Corvette with 247,000 miles on it - probably irrelevant to question. Will the plug short to the header, or whatever I should call it. Have a new boot on order from Magnecor (free, of course, its Magnecor). Will be a few days until I replace boot. In the meantime, filled crack (about the thickness of a fingernail thickness) with, yes, silicone caulk. Boots tend to be silicone based, right? Wonder how this will work. Not had a chance to fire it up yet.
Thread Starter
Le Mans Master
Joined: May 1999
Posts: 6,692
Likes: 29
From: Texas
Took car for a trip. It clearly ran more smoothly and shifted better. Though no burn marks from the crack, sealing it off seems to have made a difference. Taking it to work tomorrow rather than wife's RX. Will see how it does at Beltway speed (45 mph!).
