Alternators other then Delco for M conversion

1. A large BAT stud - where you connect the wire coming from your ammeter/voltmeter/battery.

2. An exciter wire connection. Sometimes called "I" (ignition). This is the same as the "terminal 2" connection on the Delso 10SI. One-wire alternators do not have this - but those are a specialty breed.

3. Some alternators will have a "S" (sense) terminal. The Delco CS121/130 alternators will have this, but it may be hidden under the connector boot. It is already connected internally, so you do not need to connect it. You can connect it if you wish to take your reference reading right from the battery, but this is not necessary. Most Nippondenso and Hitachi alternators will have this connection and it must be used. Treat it as you would if it were pin 1 on the Delco 10SI.

Good luck with this - you'll find that you can use almost any internally regulated alternator. You don't need to find one with a large output. Tractors just do not need the extra size.

• small alternator discussion

Not sure if it would help, but I've put a Delco 10-SI on both a C and a 400. I'd be happy to send you pics of how they turned out and what sort of brackets I had to make for it. If so, shoot me your email address.

- David

I just saw your email address below. Never mind...I'll send the pics your way.

- David