Lt1Porsche

iTrader: (6)

Friday night I made 1 pass and right before I crossed the finish line the check gauges light came on. Alternator stopped charging. I was lucky enough to make it to my grandfathers house (23 miles) before the whole car cut out. I replaced my alternator recently due to the same issue. I'm using a reman aftermarket because at the time I couldnt afford the more expensive AC delco. What alternator have you replaced yours with and what kind of luck have you had? I believe my problem was the over-drive pulley I put on thursday. Has anyone had a problem with the over-drive pulley ruining an alternator? Or was the just a coincindence.

overkill-lt1

iTrader: (2)

i bought one off e-bay from a place in california.shipped to ny in 2 days.works great ,better than the stock one. Price 75.00 plus shipping.i didnt have an over or under drive pully.but i do have it shoved into an rx7.

69LT1Bird

iTrader: (1)

So let me get this right, you put on an overdrive pulley on the alternator so it spins fast and now you wonder why it does not last. Why are you using an overdrive alternator pulley, I don't see an underdrive crank pulley in your sig?

SOMbitch

iTrader: (8)

Yea I wonder the same thing but that's what a voltage regulator is for. Most aftermarket alts. are junk so I awould go AC/ delco next time. Learned it the hard way like you

69LT1Bird

iTrader: (1)

I was talking about bearing failure and or overheating. The internal fans may not be able to keep up with the increase in heat created by the higher rpm's. F cars are packaged too tight already plus the low alternator position adds to the heat buildup.

SOMbitch

iTrader: (8)

Good point Never gave it much thought

I am running UD pulley with cam but with more idle so I have no charging probs