Attack of the coil killer!

Hey guys whats up, I hope someone has some ifo because this is getting irritating!
I have killed 2 coils in a matter of 5 starts! The only thing that has changed recently is the addition of a new alternator. My old alt. had a bad diode, at idle speeeds. I have replaced it and man what a difference. Howeveer this is the only thing I can think of that will continue to kill the coil. Dont ask me how, I just figure thats the only thing that has changed.
I did have the coil mounted above the intake, so it may have gotten hot, but it was there for quite some time and much longer run times than when it seemed to fail. Also it was mounted on its side. This is the second coil that has "leaked". It has a small amount of oil, tha seemed to leak out.
I installed another coil, this time a good old factory spare, it was started only 2 times, and yesterday after stripping the quarter panel it wouldnt start again, and I have no spark again. The coil before the stock install was only several months old and it was an Accell "super coil" nothing special really.
Any ideas? Voltage reg? ballast resiter? what else can it be?


two things kill coils. to much voltage or too much heat. and I don't think heat is your problem.
cheers