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Hot electronic voltage regulator when key left on #1866228
07/07/15 11:27 PM
07/07/15 11:27 PM
Joined: Mar 2005
Posts: 1,022
Green Lane, PA
sawdust Offline OP
super stock
sawdust  Offline OP
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Joined: Mar 2005
Posts: 1,022
Green Lane, PA
Have a friend that was doing some trouble shooting and left the key in the run position and noticed the electronic voltage regulator was hot to the touch. 1970 type voltage regulator.
My thoughts were that the regulator is getting hot trying to energize the alternator and without it spinning overheats the regulator.
Thanks.

Re: Hot electronic voltage regulator when key left on [Re: sawdust] #1866356
07/08/15 02:56 AM
07/08/15 02:56 AM
Joined: May 2003
Posts: 1,751
Graham, WA
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Polarapete Offline
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Polarapete  Offline
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Joined: May 2003
Posts: 1,751
Graham, WA
Bad stuff happens to ignition systems, too, when you leave the key in the "run" position while the engine is not running. So don't do it. If you need to trace some circuit, use a VOM or powered circuit tester.


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Re: Hot electronic voltage regulator when key left on [Re: sawdust] #1866359
07/08/15 02:58 AM
07/08/15 02:58 AM
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
RapidRobert Offline
Circle Track
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Posts: 36,040
Lincoln Nebraska
It'd be getting hot from "full fielding" the field circuit to raise the system voltage to what the reg is built for which ain't working since the alt ain't charging/raising up the system voltage even with the reg constantly grounding the green field wire to max it out. reg is flowing max current


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Re: Hot electronic voltage regulator when key left on [Re: RapidRobert] #1866415
07/08/15 09:20 AM
07/08/15 09:20 AM
Joined: Mar 2005
Posts: 1,022
Green Lane, PA
sawdust Offline OP
super stock
sawdust  Offline OP
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Joined: Mar 2005
Posts: 1,022
Green Lane, PA
Thanks, that was my take on things.







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