How does an alternator short out and blow a fusible link? I noticed on the alternator that I took off that there was only one nut on the post that you attach the cable to but on the new alternator I noticed two nuts so I left one on the post where it was and used the other nut to attach the cable. It ran for 15 minutes fine then all of a sudden all the electric went out, and the truck wouldn't start. The Dealer told me the alternator was installed wrong and that the fusible link was blown, what did I do wrong?

Thanks for the help

Mave

 

It sounds like the dealer is blowing smoke up your skirt. A nut on the stud won't make a bit of difference. If you mounted the alternator to the bracket, plugged in any harness and connected any high-amp connection to the stud, without pinching any wires, there's not much in the install process that can go wrong.

Could be a pinched wire or a defective alternator.

 

Ok thanks for the info, I'll take that into consideration.

 

is it blowing the 40a?

 

The only time i have ever seen a blown fusible link is on my friends 84. He was working on it while running (bad move on his part) and he dropped his wrench, it fell down and contacted the alternator post and block at the same time, blowing the link. Luckily, we were able to obtain and install a replacement.

 

sorry hit wrong post button