Shut field in starters..WHY?

Randy G · Apr 9, 2017

Why did they put shunt fields in starters? To slow them down? How do they work and function?

Bob · Apr 9, 2017

.
Look at .pdf page 196 at the link below.

John T · Apr 10, 2017

I think all the old tractor starter motors I worked on were SERIES wound while ALL the old Generators were SHUNT wound. The article Bob linked may answer your question.

John T

buickanddeere · Apr 10, 2017

To limit extreme current draw, to limit runaway rpms and to soften the engagement of the pinion into the ring gear.

RandyB(MI) · Apr 10, 2017

I don't claim to know anything about them ..but...when looking to get my starter re-built / replaced for my '66 GTO, I went to a very reputable starter/gennie man and told him I NEVER wanted to have the "Gm hot hard start" problem with this car. Knowing how hot Pontiac V-8,s run and with 10.75 : 1 comp ratio , he proceeded to tell me not to waste my money on those so called "hi torque" speed shop starters , that he would build mine up to out perform those. he did just that and for $ 75.00 , he said he put a "shunt winding" in it. meant nothing to me. That started spun that engine over fast and even when hot, there was no difference. Just what I wanted and for a fraction of the $$$ than the speed shop stuff. So whatever it does...it flat works !

Shut field in starters..WHY?

Randy G

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Bob

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John T

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buickanddeere

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RandyB(MI)

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