Dodge generators

[37 dodge pat]

Hi ...I have a 1937 dodge d5 sedan ....Will a generator from a 35 -36 dodge work ?....Will certain Plymouth models work as well ?of the same year .....is there a cross reference site to research someone can lead me to .....thanks in advance 

[Spinneyhill]

These are the interchanges for your generator. Earlier ones were 3rd brush types I think and as were the other '37-39 Chryco models not quoted here.

Edited March 7, 2018 by Spinneyhill (see edit history)

[37 dodge pat]

Thank u .....so a 37 Plymouth 2 brush generator will not work then ? Say a gcj4802a....sorry for the newbie ?s ...my first 6v car 

[TerryB]

My 37 Dodge 1/2 ton was the three brush type which means it has a cut out relay as the only voltage controller device used.(besides the effect of the third brush)

Edited March 7, 2018 by TerryB (see edit history)

[Spinneyhill]

This is the group including the Ply you mention. It says "3 brush generators" at the top. You will need a different cutout or voltage controller to use one of these. In terms of technology, it would be a backward step.

[37 dodge pat]

Appreciate the info ....Pat

[Frank DuVal]

A three brush generator has no "voltage regulator", just a cut-out device that disconnects the generator from the battery when the engine is not running. If the cut-out was no tin the circuit, the generator would "motor", i.e. runs like a motor because it is still connected to the battery. Now a diode can be the cut-out, no moving parts like a relay, but still prevents the battery from powering the generator.

 

Voltage "regulation" is by adjusting the third brush location in respect to another brush, that is what that screw adjustment does inside the generator. I used quotes because it is set for one charging rate, and the voltage will vary with battery condition, engine speed, loads etc.

 

The two brush generator uses the common voltage regulator with more than one coil inside, typically. A step up in technology from the three brush!

[TerryB]

The battery water level has to be monitored more often with the third brush systems as the charging rate is independent of the battery needs.  The battery can be overcharging if the third brush is not set properly.

[37 dodge pat]

So if I had a 2 brush generator to replace my 3 brush I'd just have to add a 3 wire voltage regulator in place of the 2 wire cut out box that's there now ? Frank

[Spinneyhill]

Think you have a two brush and you asked about another that turns out to be a three brush. Stick with the two brush generator.