M1008 Killing REAR battery?

[cpf240]

So it appears that previous owner (he had a parts truck) put a gen2 isolated ground alt in the gen1 position but hooked it up with ground to where it should be on alt one the bolt in back not the post. Think this explains a lot of the issue,gonna take it to alternator rebuild man and have him set it up to work in gen1 position so it grounds to case. Seem feasible?

It would probably work, but is not "correct". The alts are *both* supposed to be isolated-ground. However, the GEN 1 position *is* grounded via the stud to the top of the engine. So, a "normal", non-isolated ground, alt will work in the GEN 1 position. If your GEN 1 was not connected properly, then that may be all it was. Have it checked out and verify what you have. Then decide how you want to proceed.

 

[Warthog]

ChrisG you really need to start your own thread instead of adding to this 5 year old thread.