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Regulator for 8N is burning out

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Red

11-23-2002 07:09:25

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Hi, Since this summer I had to replace the regulator on my 1950- 8N three times. I have it connected the same as the original and have the generator tested and it is OK, but everytime it burns out on me. I need some help from the panel. Thanks in advance RED

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11-23-2002 08:26:53

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Re: Regulator for 8N is burning out in reply to Red, 11-23-2002 07:09:25

I assume we're talking about a 6-volt positive ground system? with a 12-volt conversion, all bets are off...

You should check the generator for output. If it is too high, it may be burning out the VR.The VR should be set about 1 volt above generator ouput, or the generator should be putting out 1 volt below the VR rating. Also make sure you have a correct VR. Also make sure you have the wires of coorect gauge attached to the right places. ARM FLD BAT GND connections must be correct.

Make sure there is no grease or oil inside the VR case. Spray everything with electronic contact cleaner, don't use WD-40 or anything like that.

You should also re-polarize the generator anytime the charging circuit has been disconnected. With the ignition off and everything hooked up, touch a small jumper wire from the ARM term to the BAT term for an instant(or half-an-instant)Doesn't take much to restore residual magnetism.

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Junior Johnson

11-23-2002 18:50:55

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Re: Re: Regulator for 8N is burning out in reply to bg, 11-23-2002 08:26:53

I baught a 1952
FORD 8n that ha new regulator on it but was not charging ,got to checking it out it had burned the new regulaton to a crisp . When ifound the problem the armature wire and the field wires were shorted behind the toolbox . The wiring harness is thick at one spot just behind the tool box and the wiring is origional the insulation is old and brittle and had crumbled and let the wires get to gether.

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so where......bg

11-23-2002 20:28:00

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Re: Re: Re: Regulator for 8N is burning out in reply to Junior Johnson, 11-23-2002 18:50:55

...do you hide the moonshine tank on an 8N?

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I just figgered it out!..................bg

11-23-2002 20:28:51

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Re: Re: Re: Re: Regulator for 8N is burning out in reply to so where......bg, 11-23-2002 20:28:00

... you use it to load the tires instead of calcium chloride!

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11-23-2002 20:30:06

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Re: Re: Re: Re: Re: Regulator for 8N is burning out in reply to I just figgered it out!..................bg, 11-23-2002 20:28:51

sorry about the misplaced modifier: it should read: you use it, instead of calcium chloride, to load the tires!

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