M35A3 alternator conversion

[shannondeese]

When I bought my A3 the generator was frozen up. I had the local electrical shop put together a 22si delco 24 volt alternator for me. It’s a one wire hook up. Has anyone else done this on the A3? I did it on my A2 but the wiring was different. If you have can you tell me how you wired it? Thanks.

 

[simp5782]

If it's a brushless unit just one wire to the 24+ on the battery or at the starter if it's closer and a ground wire for the alternator if needed

 

[Eliteweapons]

Good Morning,
The wiring diagram is in tm9-2320-24-1-2 on page 750. Looks like wire #2 and 770n needs to be connected to the alternator output. Wire 770p needs to get connected to the ground wire already there. Cap wire 568. I have not done a 1 wire conversion on mine but this looks like what needs to be done. Maybe someone else has actually done it and can help.

I hope this helps.

 

[gimpyrobb]

I put a modern 1 wire 24v alt in my M725. Just run the large wire to the + output and cap the small one.

 

[shannondeese]

I did a one wire conversion on my A2. But the wires are numbered differently. Thank you for your responses. I’ll have it in tomorrow.

 

[glcaines]

When I bought my A3 the generator was frozen up. I had the local electrical shop put together a 22si delco 24 volt alternator for me. It’s a one wire hook up. Has anyone else done this on the A3? I did it on my A2 but the wiring was different. If you have can you tell me how you wired it? Thanks.

A good alternator shop should have been able to repair your old alternator. Probably just a bad bearing.