External voltage regulator question. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Cat Fuzz · 11-16-2004, 07:41 PM

It seemed a bit odd to me that the housing of the voltage reg is insulated from ground by some little rubber grommets where it bolts to the rad support, then there is a little wire bolted to the screw that holds the housing on that goes to ground. Is the reg housing supposed to be grounded or not? I'm just wondering because I just replaced my reg and the new one tried to boil my battery and pop all my lights. The old one was allowing current to fluctuate.

So, is that ground wire supposed to be there?

Cat Fuzz · 11-16-2004, 08:10 PM

bump

I need to get this thing back together.

Longhorn Man · 11-16-2004, 08:18 PM

Yes, the ground wire is supposed to be there...there should also be some sore of little magic electrcal can...cylinder looking thing on there. (A resistor or something?)

**john** · 11-16-2004, 08:19 PM

I believe the regulater needs a ground. If I remember right there was a metal ground strap that one of the bolts went through on the insulator. John

Longhorn Man · 11-16-2004, 08:20 PM

Oh, and an interesting thing too....if you hook your horn wire onto the terminal on the external regulator, the dash lights will come on when you depress the horn button. Neat huh?
The Dope Smoking Old Man (previous owner) had it hooked like that...he was a total idiot.

JimKshortstep4x4 · 11-16-2004, 08:21 PM

The ground wire is essential for the regulator to work otherwise it can fry your battery. The regulator bleeds off excess charge to ground through the wire.

The regulator is mounted on rubber "feet" to minimize vibration to the regulator.

Jim

11-16-2004, 07:41 PM	#1
Cat Fuzz My son, my joy. Join Date: Sep 2003 Location: Spokane WA Posts: 463	External voltage regulator question. It seemed a bit odd to me that the housing of the voltage reg is insulated from ground by some little rubber grommets where it bolts to the rad support, then there is a little wire bolted to the screw that holds the housing on that goes to ground. Is the reg housing supposed to be grounded or not? I'm just wondering because I just replaced my reg and the new one tried to boil my battery and pop all my lights. The old one was allowing current to fluctuate. So, is that ground wire supposed to be there?

11-16-2004, 08:19 PM	#4
john member #16 Join Date: Dec 1999 Location: Yuba City Ca. Posts: 3,618	I believe the regulater needs a ground. If I remember right there was a metal ground strap that one of the bolts went through on the insulator. John __________________ john http://67-72chevytrucks.com/vboard/showgroups.php board vendors http://www.flickr.com/photos/1745471...7602865984234/

11-16-2004, 08:10 PM	#2
Cat Fuzz My son, my joy. Join Date: Sep 2003 Location: Spokane WA Posts: 463	bump I need to get this thing back together.

11-16-2004, 08:18 PM	#3
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Yes, the ground wire is supposed to be there...there should also be some sore of little magic electrcal can...cylinder looking thing on there. (A resistor or something?)

11-16-2004, 08:20 PM	#5
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Oh, and an interesting thing too....if you hook your horn wire onto the terminal on the external regulator, the dash lights will come on when you depress the horn button. Neat huh? The Dope Smoking Old Man (previous owner) had it hooked like that...he was a total idiot.

11-16-2004, 08:21 PM	#6
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	The ground wire is essential for the regulator to work otherwise it can fry your battery. The regulator bleeds off excess charge to ground through the wire. The regulator is mounted on rubber "feet" to minimize vibration to the regulator. Jim



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