Can't Get Enough
Join Date: Sep 1999
Location: Cotopaxi, Colorado
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Re: Distributor gears stripped TFI coils shorting.
Did you put a high volume oil pump in your 258? If the dist. turns free when out of the car, you may want to check the oil pump. I have seen oil pumps on 4.0l's become hard to turn, and strip out the dist. drive gear. I have also seen the dist. bushings go dry, and sieze up tight, which also stripped out the dist. drive gear. You may want to stick a long screwdriver down the dist. slot into the oil pump drive, and make sure that it turns free. Some high volume pumps will also put excessive strain on the drive assembly under higher r.p.m.'s.
As far as the alternator belts go, you may want to check the crankshaft end play. If it isn't set correctly, or worn excessive, it will throw drive belts. Worst case senerio that I can think of is the oil pump failing, and taking out the crank thrust bearing, thus throwing the alternator belt. Hope that isn't the case.
As far as the coil goes, it dosn't take a whole lot of water or salt to start the arcing process on a 60k volt system. Bakelite is a good insulator, but once it starts to burn, it becomes a conductor. Try replacing the coil again, and use a small amount of dielectric silicone around the boots and coil tower. This both seals out moisture and helps prevent arcing. This is the clear grease that comes with a good set of plug wires, it is also sold in small tubes from any parts store for a couple of bucks.