Reproduction Parts for 1916-1964 Chevrolet Passenger Cars & 1918-1987 Chevrolet & GMC Trucks



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Joined: Nov 2017
Posts: 102
Shade Tree Mechanic
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Shade Tree Mechanic
Joined: Nov 2017
Posts: 102
Good day,
I spent some time searching the forums for answers to my questions.
When I got this car, the generator was in a box of other parts. It has the cut out attached. There is no Delco tag on it. No tag at all.
Is there any other way to ID it? It does have 3 brushes. The front plate has 2 different ears for the adjustment brace.
Also in the box of parts is a firewall mounted type voltage regulator.
I installed a new wiring harness from YnZ. The schematic they sent for the 36 FC shows a Canadian version (936-U) and the domestic version (946-C). The schematic does not show an A terminal on the generator. The wiring harness has a wire that goes to the B side of the cutout. The generator I have has a F terminal and an A terminal. I am assuming the F terminal goes to the F side of the cut out. The A terminal?
Is it possible this is not a 946-C?

Thank you much for any info.

Steve

Joined: Jan 2002
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ChatMaster - 25,000
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ChatMaster - 25,000
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Is the generator air cooled? Fan on back of pulley and holes in front and rear end frames?


Gene Schneider
Joined: Jul 2008
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It is real easy to post picture with the new site format, even I can do it.

Joined: Nov 2001
Posts: 29,863
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The 936-U generator is Canadian for the 1936 Standard models and it uses a voltage regulator. The third brush is fixed and is pre-adjusted at the factory for maximum output. The 936-U generator has two terminals, the "F" terminal and the "A" terminal. The "F" terminal is the field and the "A" terminal is the armature. Both terminals attach to the voltage regulator.

The 946-C generator is the USA version for the 1936 Standard models. The 946-C generator has an adjustable third brush with a cut-out. There are no "F" or "A" terminals on the generator and the field coils are internally grounded on the inside of the generator. The generator wire goes to the "Gen" terminal on the cut-out and the "Batt" terminal on the cut-out is attached to the back of the ammeter. The third brush on the generator can be manually adjusted for the desired output since the 946-C generator does not use a voltage regulator like the Canadian models.

laugh wink beer2


The Mangy Old Mutt

"If It's Not Junk.....It's Not Treasure!"
Joined: Nov 2017
Posts: 102
Shade Tree Mechanic
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Shade Tree Mechanic
Joined: Nov 2017
Posts: 102
Thank you for the fast answers. Yes it has the fan behind the pulley. And the plates are open. I will post a picture tomorrow afternoon. It does have the F and A on the body and there were wires ends attached to both.
So, I have a Canadian generator, any reason why I cannot use it? There is a voltage regulator here also.
Does that mean this is a Canadian car? How else can I tell? I guess I will do more research.

Thank you all!

Steve

Joined: Nov 2001
Posts: 29,863
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Check the cowl tag to see if your car was made in the USA or Canada.

laugh wink beer2


The Mangy Old Mutt

"If It's Not Junk.....It's Not Treasure!"
Joined: Nov 2017
Posts: 102
Shade Tree Mechanic
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Shade Tree Mechanic
Joined: Nov 2017
Posts: 102
It is a California car. From the information I see here I guess it has a Canadian generator. I will work on seeing if it will work with the voltage regulator that is in the box. Thank you again for your assistance.
Steve

Joined: Jan 2002
Posts: 30,701
Likes: 141
ChatMaster - 25,000
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It may be a 1938-1939 car generator. It was the three brush type but used a voltage regulator that mounted to the firewall....or it could be a 1936 Master generator that had a circuit breaker on top and no volt. reg.


Gene Schneider

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