Charger

[NYCAMO]

New to the whole asking questions on here thing so don’t beat me up too bad I’ve looked into some similar questions and looked at the wiring harnesses on the TMs. I have a 1987M998 with an alternator issue my gauge reads midway on the yellow when I run the vehicle off another 24 V vehicle the gauge reads as if it is charging just fine. I have checked all my grounds and other connections and they are all clean and tight I am however reading a dead short between the positive and negative terminals off of my alternator when the wires are on I’m wondering if there could be a dead short in the wiring harness between the alternator and the starter?

 

[Guyfang]

I am going to move this thread to the correct, (HMMWV) forum.

 

[Mogman]

If there was a "dead short" all kinds of exciting things would be happening.
How many volts from the output terminal of the alt and ground when running?
How many volts from the IGN terminal on the alt and ground when running?
Do you have a 60A alt? (2 belt grooves)

 

[87cr250r]

Engine running with volt gauge in yellow means the alternator isn't charging.

 

[NYCAMO]

Alt is not charging I believe my regulator is bad . Had time trying to find a direct replacement or if there is alternative one I can use ? I have 76761-N3119 in it now .

 

[TOBASH]

Get a hand held meter and double check before assuming the factory meter is correct.

 

[juanprado]

Might have several issues but always start by load testing and checking each battery.

 

[Mogman]

Alt is not charging I believe my regulator is bad . Had time trying to find a direct replacement or if there is alternative one I can use ? I have 76761-N3119 in it now .

Have you checked to see if the alternator is getting 24V to the IGN. terminal?

 

[Mogman]

Alt is not charging I believe my regulator is bad . Had time trying to find a direct replacement or if there is alternative one I can use ? I have 76761-N3119 in it now .

Also do you have a 100A or a 200A alternator?
Ether way the N3135 will work, the N3119 is only for the 100A alt, the N3135 will work on ether the 100 or 200A