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



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#486723 11/02/23 10:45 PM
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Midi Offline OP
Shade Tree Mechanic
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let me see where this goes.

I understand that GM came out with a 6 volt 4 field starter in late 53 (Delco 1929912) It was intended for use in the 53 and 54 Power Glide equipped cars. I know back then the PG cars had a higher compression ratio engine, and having a few more horsepower than the standard shift models. I am thinking the new starters, with the four fields, was designed to assist in starting the engine by producing a greater amount of torque than the older 1107109 starter. I am curious to know if this is a correct assumption, and if so, how great of a difference would that make in cranking over the engine? Also, would it not follow, that if a starter developed more torque at the same voltage, that it would result in an increase in the amperage draw necessitating somewhat heaver wiring?

I started thinking about this because I am considering installing a 261 in a car running on 6 volts. I would rather not switch over to 12 volts. I believe the compression ratio of the 261 (7.8:1) would be similar to, or even slightly less than the compression ratio of a 235 with an 848 head (8:1). I don't think an increase of cubic inches would have much of a difference in terms of the required torque. If all this washes, then I'll get more serious about finding a 4 pole starter and pursuing the 261 installation. I am a long way from being an engineer so I would be eager to hear the opinions of those having more slide rules and experience than me.

Filling Station - Chevrolet & GMC Reproduction Parts


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You are correct in the fact that Chevrolet had a 4 field starter and it performs better than the 2 coil version. I am not aware that it requires any altered wiring. Gene will be able to provide much more knowledge based on his experience.


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The 1954 Power Glide had a 4 field generator. it had number 1108035 stamped on the tag.

After, 1954 the parts book listed that number as a replacement for 1950-1954 Power Glide models..
When new the 1952 models were the only models that had the not turning over when hot - that I remember.

In 1952 they removed all the copper they could due to Korean war shortages......including radiators and starters.


Gene Schneider
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Is there an easy way to tell if a starter has 4 field coils vs 2, without disassembly?

I have seen some for sale with the 1108035 tag, but I hate to purchase without knowing for sure it is truly the uprated starter motor.

Originally Posted by Chev Nut
The 1954 Power Glide had a 4 field generator. it had number 1108035 stamped on the tag.

After, 1954 the parts book listed that number as a replacement for 1950-1954 Power Glide models..
When new the 1952 models were the only models that had the not turning over when hot - that I remember.

In 1952 they removed all the copper they could due to Korean war shortages......including radiators and starters.

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check your local auto electronic srebuilder. i had the 4 field coils installed in a 2 coil starter years ago, mike mccagh

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I expect that an ohm meter would should more resistance in a 4 coil starter.

Perhaps someone on chat who has both could make comparison readings.


Rusty

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I think the 2 pole units only have 2 screws visible from the outside to hold the pole pieces in place while the 4 pole would have 4 screws.
Tony


1938 1/2 ton Hope to drive it before I retire

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