12SI Altenator upgrade problem

938 Views 6 Replies 4 Participants Last post by CHELKAMINO, May 11, 2011

CHELKAMINO

Discussion Starter · May 10, 2011

Did this upgrade 3 years ago on my 71 with no problems. Just did the same upgrade on the 72 Elco and it starts and runs fine, but the motor will not shut off with the key? I have an ignition switch for the MSD box, so I can kill it that way. I wired it correctly and looped the old regulator harness per MAD's web site instuctions.

Save

1 - 4 of 7 Posts

CHELKAMINO

Discussion Starter · #3 · May 10, 2011

I have the diode, but not sure which wire I am to connect it to?
I believe I have a blue and a white going to the altenator.
Terminal 1 or 2 with internal regulator?

Save

CHELKAMINO

Discussion Starter · #6 · May 11, 2011

I got it, wired it inline with the jumper wire I used for the old external regulator harness. Drove it to work tonight with no problems.

Save

CHELKAMINO

Discussion Starter · #7 · May 11, 2011

Schurkey said:
Where does MSD tell you to install the diode?

Page 8 I believe

http://www.msdignition.com/instructions/Products/Ignitions/6420.pdf?terms=6420

Save

1 - 4 of 7 Posts

This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.

Top Contributors this Month