1939 generators?

[ndnchf]

I'm trying to identify these two generators and their applications. On the left is a 3 brush with T2 date code (Feb 1939). It has 4-3/8" diameter fan mount pulley, keyed with nut. On the right is a 2 brush, no date code found yet. It has a single terminal post on the side and one on the back. A 3-1/8" diameter screw on non-fan pulley with clip. The pulley is sheet metal, not cast. Perhaps aftermarket?

My intent is to rebuild and offer them for sale, but want to be sure of their application. Appreaciate any help.
Thanks,
Steve

[deuce_roadster]

The one set up for a fan and cutout is a standard, the deluxe had the fan on the crank I believe. The 39 deluxe would have a T code, 40 would have a U.

[petehoovie]

Originally Posted by ndnchf

I'm trying to identify these two generators and their applications. On the left is a 3 brush with T2 date code (Feb 1939). It has 4-3/8" diameter fan mount pulley, keyed with nut. On the right is a 2 brush, no date code found yet. It has a single terminal post on the side and one on the back. A 3-1/8" diameter screw on non-fan pulley with clip. The pulley is sheet metal, not cast. Perhaps aftermarket?

My intent is to rebuild and offer them for sale, but want to be sure of their application. Appreaciate any help.
Thanks,
Steve

[Ken/Alabama]

This is a correct 39 Deluxe generator. Cast pulley held with a nut unlike the later ones that use a threaded pulley.

[ndnchf]

So this may be a 1940 deluxe? It has the single terminal post and threaded on pulley.

[Ken/Alabama]

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Originally Posted by ndnchf

So this may be a 1940 deluxe? It has the single terminal post and threaded on pulley.

40 had two different pulleys. One being larger than the other. Both have an
01A prefix on the part number and both were cast. Also the 40 generator mount will have an 01A prefix

[petehoovie]

Originally Posted by Ken/Alabama

This is a correct 39 Deluxe generator. Cast pulley held with a nut unlike the later ones that use a threaded pulley.

[petehoovie]

Originally Posted by ndnchf

So this may be a 1940 deluxe? It has the single terminal post and threaded on pulley.

[ndnchf]

The mounting bracket does have the 01A prefix.

[Kube]

Steve, the one with the steel pulley (incorrect) is most likely '40. The only way to be certain is to check the date code as has been previously advised.
The other is most likely '39 standard. Again, to be certain, you'll need to check the date code.
The '40 is not worth the cost of rebuilding it properly.
The '39 might be IF you can find a buyer.

[ndnchf]

Kube - thanks. The black 3 brush has a T2 code, Feb '39. So it is for a standard '39? Good to know. I partially wire brushed the other one, but not found a code. I read sonewhere that the single terminal was a one or two year thing. But dont recall the details.

[Kube]

Originally Posted by ndnchf

Kube - thanks. The black 3 brush has a T2 code, Feb '39. So it is for a standard '39? Good to know. I partially wire brushed the other one, but not found a code. I read sonewhere that the single terminal was a one or two year thing. But dont recall the details.

A proper '39 deluxe generator is fairly difficult to source. Problem with all of these, no one wants to pay anything for them. Not many guys restoring cars anymore. Most guys are happy with installing whatever is cheap and kinda / sorta works.

The two-post body was '39 deluxe, '40 all and '41 all. But again, most guys don't care if it's correct. '42 - '48 generators fit and function and are cheap.

[Kube]

Originally Posted by ndnchf

Kube - thanks. The black 3 brush has a T2 code, Feb '39. So it is for a standard '39? Good to know. I partially wire brushed the other one, but not found a code. I read sonewhere that the single terminal was a one or two year thing. But dont recall the details.

A proper '39 deluxe generator is fairly difficult to source. Problem with all of these, no one wants to pay anything for them. Not many guys restoring cars anymore. Most guys are happy with installing whatever is cheap and kinda / sorta works.

The two-post body was '39 deluxe, '40 all and '41 all. But again, most guys don't care if it's correct. '42 - '48 generators fit and function and are cheap.

[ndnchf]

Kube - just so I'm clear, when you say two-post body, you mean one on the side and one out the back of the brush plate? That looks like your photos.

39 Deluxe would be T code. 2 brush, pulley keyed with nut, 2 terminal posts total. Correct?

Thank, appreciate the education.

[Kube]

Kube - just so I'm clear, when you say two-post body, you mean one on the side and one out the back of the brush plate? Yes sir. That looks like your photos.

39 Deluxe would be T code. 2 brush, pulley keyed with nut, 2 terminal posts total. Correct? Correct.

Thank, appreciate the education.[/QUOTE]

[deuce lover]

Wasn't the 39 the first yr for the voltage regulator std as well as deluxe, If so the std would be a 2 brush generator.

[ndnchf]

Originally Posted by deuce lover

Wasn't the 39 the first yr for the voltage regulator std as well as deluxe, If so the std would be a 2 brush generator.

If that is the case, what is this Feb 1939 (T2 code) 3 brush generator for?

[marko39]

That appears to be a gen for a 39 standard which uses a cutout.

[petehoovie]

Originally Posted by ndnchf

If that is the case, what is this Feb 1939 (T2 code) 3 brush generator for?

[ndnchf]

Originally Posted by marko39

That appears to be a gen for a 39 standard which uses a cutout.

This is where I'm confused. I see conflicting information regarding the '39 standard. Does it use a 2 brush or 3 brush generator? If 2 brush, what does this T2 code generator go on?

I'm looking at the Green book. If I'm interpreting it correctly, '39 standard uses the 81A-10000-A (3 brush generator), while Deluxe used the 81A-10000-D (2 brush).