HELP Burned out 2 coils in 2 months

[denson]

I have burned out two coils in two months. One was used and the other new. In both instances, I was driving and the car went dead. Luckily, this time I had anew coil in the trunk, so I swapped it out and made it home.

Does anyone have any thoughts on this? Is it the voltage regulator, or,,,,,,,.

Thanks

[edmayo]

Just check your charging voltage at the battery, it may even be necessary to drive around for a bit with long leads on the voltmeter so you keep the meter in the car with you so that if it occasionally overcharges you'll catch it in the act. For a problem of this sort I'd really consider either overcharging or poor grounds, at least as a starting point.

[denson]

Hey Ed:

When I bought the car 11 years ago, the CDI box burned out about six months after I got the car. I sent it to a company in CA and it was re-built. They put a piece of tape on the invoice and it said it burned out due to overcharging. I should have dealt with this then, but did not.

[69Sman]

I have burned out two coils in two months. One was used and the other new. In both instances, I was driving and the car went dead. Luckily, this time I had anew coil in the trunk, so I swapped it out and made it home.

Does anyone have any thoughts on this? Is it the voltage regulator, or,,,,,,,.

Thanks

John, I wen thru this a few years back with my RS. I checked and triple checked EVERYTHING, until I finally realized that it was simply....the coils.
What type of coil are you using? IF you are using a newer, silver Coil, (and/or a silver coil painted black to look original), GET RID OF IT NOW, and find an old Bosch, BLACK coil (made in Germany, or even a later black one, made in Portugal will do) and put one one your car. And then buy up any extras you can find.
I guarantee you, IF the coils that went bad are SILVER, THAT is the problem. Ask me how I know....

[denson]

Hey Stacey:

Thanks for jumping in! I agree with the silver coils,,,, and I did sand mine down and paint it black, so it looks oem. I think my issue is the voltage regulator though. There are too many signs pointing to that,,,, my tach jumps at times, I blew a CDI box many years back and the original coil that burned out was the older style we prefer. The second burned out unit was that silver unit!

I am not good with electrical tests, so I think I may have to get the car to the shop. I hope I can find another oem Bosch regulator as the new ones are ugly and look
anything but oem.

[69Sman]

Hey Stacey:

Thanks for jumping in! I agree with the silver coils,,,, and I did sand mine down and paint it black, so it looks oem. I think my issue is the voltage regulator though. There are too many signs pointing to that,,,, my tach jumps at times, I blew a CDI box many years back and the original coil that burned out was the older style we prefer. The second burned out unit was that silver unit!

I am not good with electrical tests, so I think I may have to get the car to the shop. I hope I can find another oem Bosch regulator as the new ones are ugly and look
anything but oem.

Man, I FEEL you pain....been there, done that, STRANDED at least 3 times before we got mine dialed in....GOOD LUCK !!!!!