Alternator I.D.

[Stuart F.]

Further to my recent thread about my battery problems, I've begun an effort to re-establish what I did back in the early 90's with my alternator(s) as it now affects my battery charging problem;

The alternator I now have on the car and it is now suspect as the cause of my problem is a:

1100628-37A
361-12v NEG

I now blieve this to be a replacement 1969 unit I got from "Chicago Corvette" (sorry, but I lived within 15 minutes of their place back then).

I have another unit that looks to be my original that I apparently never restored. It is a;

110063 (rest filed off)
9J10 12v NEG

Now then, being away from my reference books, can any one ID these two units???

I have the correct SHP pully and fan (loose) to go on a third alternator that was a new unit I bought from Sears back then. My intention is to put this one on my engine and then restore one (or both)of the above units. I also have another new (correct) Voltage regulator, but I'm considering trying to get a new solid state unit to go with my new Sears alternator in order to get back on the road.

Thanks for any help you can offer.

Stu Fox

[Joe L.]

Re: Alternator I.D.

Further to my recent thread about my battery problems, I've begun an effort to re-establish what I did back in the early 90's with my alternator(s) as it now affects my battery charging problem;

The alternator I now have on the car and it is now suspect as the cause of my problem is a:

1100628-37A
361-12v NEG

I now blieve this to be a replacement 1969 unit I got from "Chicago Corvette" (sorry, but I lived within 15 minutes of their place back then).

I have another unit that looks to be my original that I apparently never restored. It is a;

110063 (rest filed off)
9J10 12v NEG

Now then, being away from my reference books, can any one ID these two units???

I have the correct SHP pully and fan (loose) to go on a third alternator that was a new unit I bought from Sears back then. My intention is to put this one on my engine and then restore one (or both)of the above units. I also have another new (correct) Voltage regulator, but I'm considering trying to get a new solid state unit to go with my new Sears alternator in order to get back on the road.

Thanks for any help you can offer.

Stu Fox

Stu------



The 1100628 was used for some 1963-64 Corvettes as well as other applications. It was the base 37 amp unit, just as yours is marked. The date code doesn't look right so I can't say when it was manufactured.

There was no alternator of GM #110063. If you mean GM #1100633, that is a 55 amp unit used for 1963 Corvettes. This one was manufactured on October 10, 1969 so it was originally a SERVICE alternator.

[Stuart F.]

Re: Alternator I.D.

Joe;

Thanks for the quick response. On closer inspection, I believe the date code to be "3G1" on the 1100628 on the car, and therefore probably my original. Thanks for straightening this out for me. The other one I have then (the 110633) is the 69 replacement. Odd that it looks to be in scruffier condition than my original. Perhaps it was a used one.

Regardless, the 1100628 unit on the car failed the diode test while the 110633 passed.

Thanks again Joe. Have a great weekend.

Stu Fox