[C2] Voltage Regulator Nuts

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Mar 25, 2018 | 05:54 PM

58n65

Thread Starter

Burning Brakes

Joined: May 2004

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From: South MS

Voltage Regulator Nuts

Are the voltage regulator nuts meant to isolate the regulator from ground? I've been searching but haven't found an answer. Just a curiosity question.

Thanks,
Dex.

Mar 25, 2018 | 05:59 PM

65GGvert

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From: Kannapolis NC

I don't know which car you're working on, but my 65 regulator has a ground wire run to the case under the screw, and it bolts to a fiberglass fender, so I'll say no.

Mar 25, 2018 | 06:03 PM

dharris45

Burning Brakes

Joined: Oct 2009

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From: Clifton VA

If your asking about C2s, the voltage regulator mounts to the inner fender (fiberglass), so the VR is not grounded by the mounting. Thus the separate black ground wire to the VR to provide a ground.

Mar 25, 2018 | 06:10 PM

Frankie the Fink

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Army

The mechanical voltage regulator is what is called a "vibrating points" device...the points can actually open/close 200 times/second. The rubber isolators are to dampen any external vibrations that could affect the V/R operation... They are not electrical insulators...

An advantage of the solid state V/Rs like the Wells VR-715 is that they don't give a hoot about vibrations. You could lag bolt them onto a cylinder head...

Last edited by Frankie the Fink; Mar 25, 2018 at 06:19 PM.

Mar 25, 2018 | 09:26 PM

58n65

Thread Starter

Burning Brakes

Joined: May 2004

Posts: 1,249

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From: South MS

Quote:

Originally Posted by 65GGvert

I don't know which car you're working on, but my 65 regulator has a ground wire run to the case under the screw, and it bolts to a fiberglass fender, so I'll say no.

Sorry I forgot to say that it was for my 65. So it mounts on the inner fiberglass? I've tried to find a matching bolt pattern, on the fiberglass, but didn't see one. I'll try looking again soon. Guess it would help if I looked in the AIM manual for placement. Bubba may have filled it in. Lord knows he did a number to the headlight opening.

Thanks,
Dex.

Mar 25, 2018 | 09:28 PM

58n65

Thread Starter

Burning Brakes

Joined: May 2004

Posts: 1,249

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From: South MS

Quote:

Originally Posted by dharris45

If your asking about C2s, the voltage regulator mounts to the inner fender (fiberglass), so the VR is not grounded by the mounting. Thus the separate black ground wire to the VR to provide a ground.

The black wire and the rubber coated nuts had me wondering, so that's why I posted this message.

Thanks,
Dex.

Mar 25, 2018 | 09:32 PM

58n65

Thread Starter

Burning Brakes

Joined: May 2004

Posts: 1,249

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From: South MS

Quote:

Originally Posted by Frankie the Fink

Thanks Frankie! I bolted mine down then started looking through the parts books when I saw the rubber coated nuts. I knew I was doing something wrong. This is another lesson learned!

Thanks,
Dex.

Mar 25, 2018 | 09:49 PM

65GGvert

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From: Kannapolis NC

Here's a picture of the 65 a/c car I owned. The extra red wires on the horn relay won't be there if it non-a/c.

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Mar 25, 2018 | 10:13 PM

C.W.C.

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Joined: Oct 2007

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From: Illinois

65 voltage regulator placement.

Quote:

Originally Posted by 58n65

Thanks Frankie! I bolted mine down then started looking through the parts books when I saw the rubber coated nuts. I knew I was doing something wrong. This is another lesson learned!

Thanks,
Dex.

Dex, I owned an unmolested 65 coupe with a/c and t/i and it had a delco transistor voltage regulator that was mounted on the left (drivers) side of the core support on the "engine side" of that support.

Mar 25, 2018 | 10:13 PM

#10

58n65

Thread Starter

Burning Brakes

Joined: May 2004

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From: South MS

Quote:

Originally Posted by 65GGvert

Here's a picture of the 65 a/c car I owned. The extra red wires on the horn relay won't be there if it non-a/c.

Thanks for the picture 65GGvert. I probably over looked the holes, but the front end was hit, so Bubba may have filled them in.

Thanks,
Dex.

Mar 25, 2018 | 10:15 PM

#11

C.W.C.

Instructor

Joined: Oct 2007

Posts: 131

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From: Illinois

voltage regulator

Quote:

Originally Posted by C.W.C.

That car also had a 1100697 alternator

Mar 25, 2018 | 10:21 PM

#12

Powershift

Race Director

Joined: Apr 2005

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From: Bowling Green, Kentucky

Quote:

Originally Posted by 58n65

Thanks for the picture 65GGvert. I probably over looked the holes, but the front end was hit, so Bubba may have filled them in.

Thanks,
Dex.

Factory air cars always have the regulator on the driver side due to AC compressor and alternator locations. For 1965 small block non-air cars, I believe the regulator is on the right inner fender as alternator is on this same side.

The AIM is your friend.

Larry

Mar 25, 2018 | 10:24 PM

#13

58n65

Thread Starter

Burning Brakes

Joined: May 2004

Posts: 1,249

Likes: 143

From: South MS

Quote:

Originally Posted by C.W.C.

Thanks C.W.C.. My car is a non-A/C car and the wiring comes in on the passenger's side. I just went and looked at the area the AIM said it was supposed to mount in and there's no holes. It's also an area that had some work done....so the holes were filled in. Well, nothing like drilling new holes.

Thanks,
Dex.

Mar 25, 2018 | 10:26 PM

#14

58n65

Thread Starter

Burning Brakes

Joined: May 2004

Posts: 1,249

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From: South MS

Quote:

Originally Posted by Powershift

Larry

Yep, the AIM is my friend. It shows where the VR supposed to be mounted but the holes were filled in.

Thanks,
Dex.

Mar 25, 2018 | 10:52 PM

#15

65GGvert

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From: Kannapolis NC

Quote:

Originally Posted by 58n65

Yep, the AIM is my friend. It shows where the VR supposed to be mounted but the holes were filled in.

Thanks,
Dex.

Sorry, it's been a lot of years since I owned a non-a/c car. Even the one I have now with Classic Auto Air has had the alternator and regulator moved to the driver's side. I forgot about that change.

Mar 26, 2018 | 06:59 PM

#16

58n65

Thread Starter

Burning Brakes

Joined: May 2004

Posts: 1,249

Likes: 143

From: South MS

Quote:

Originally Posted by 65GGvert

Sorry, it's been a lot of years since I owned a non-a/c car. Even the one I have now with Classic Auto Air has had the alternator and regulator moved to the driver's side. I forgot about that change.

My crate engine has the alternator on the driver's side, so I had to buy an alternator relocation harness. I did see, in some older posts, that 64 corvettes had the regulator mounted on the radiator support, driver's side. I'm sure it doesn't really matter if it's mounted to the radiator support or the fiberglass inner fender, as long as it's grounded.

Thanks,
Dex.

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