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Old Jul 18, 2023 | 11:19 AM
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Default voltage issue

Any one having trouble with voltage regulators? Bought two to replace mine and they put out a constant 18 volts. Had to buy from local generator shop that worked. Is there a specific part # for 1962 regulators
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Old Jul 18, 2023 | 01:32 PM
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I went with a solid-state regulator on my 61.
Unfortunately, the company is no longer in business.

I *believe* the regulators are adjustable.. But I think you have to bend metal to do it!!
I recall reading the procedure.. but it's not in ST-12.. I don't recall where it was!

EDIT: Update.. I found this PDF I had stashed away years ago.. Hope it help you!
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DelcoVoltageRegulator.pdf (1.76 MB, 124 views)

Last edited by SDVette; Jul 18, 2023 at 01:38 PM.
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Old Jul 18, 2023 | 03:45 PM
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Originally Posted by SDVette
I went with a solid-state regulator on my 61.
Unfortunately, the company is no longer in business.

I *believe* the regulators are adjustable.. But I think you have to bend metal to do it!!
I recall reading the procedure.. but it's not in ST-12.. I don't recall where it was!

EDIT: Update.. I found this PDF I had stashed away years ago.. Hope it help you!
That .PDF file and the Delco literature in it are not applicable to any C2 Corvette.
The regulators discussed in the above are a two unit (for use with third brush generators) and three unit regulator designed for use with standard generators. This section can apply to (unmodified) C1 Corvettes.

As to the Delco regulators supplied with the C1 and C2 Corvette (shunt wound generator on C1 and 10DN alternator on C2) these are adjustable by following shop manual instructions. Few Delco regulators were adjusted because doing so won't fix a bad regulator, one with burned contacts or shorted/open coil(s). Few bothered with the time consuming adjustments and replaced them instead.

Today that is not so easy. Replacement electromechanical regulators available today are not built the same or nearly as well as the Delco originals. Adjusting one is usually fatal. A very slight bend or change in spring tension has a very pronounced effect that renders it worse than before. If you have an original Delco regulator you can try some crocus cloth between the contacts and see if they clean up. If you have a reproduction performing poorly you need another.

There is no solid state regulator made to replace the 3 unit regulator used with a generator on a C1. You have to find NOS or limp by with the shitty replacement sold at the FLAPs.

The solid state replacements usually work OK. All tend to overcharge, even the mechanical ones. My theory is this is intentional. The manufacturers know these are most often used with flooded cells (lead acid car battery) and flooded cells tolerate some overcharging.

I canvass swap meets on the hunt for original Delco NOS regulators. Nothing is better.

Dan
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Old Jul 18, 2023 | 05:00 PM
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62s originally used a 002E Delco regulator matched up with a 35 amp generator . 002Es are as plentiful as hens teeth. As a substitute you can find one on Amazon.

Amazon.com: GM Genuine Parts D618 Voltage Regulator : Automotive Amazon.com: GM Genuine Parts D618 Voltage Regulator : Automotive

Here is one on EBAY
1957-1964 GM Chevy Buick Pontiac Cadillac Voltage Regulator 1119168 SEALED NOS | eBay

Last edited by Donald #31176; Jul 18, 2023 at 05:44 PM.
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Old Jul 19, 2023 | 01:58 PM
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This won't help anyone.. but just for reference, this is the solid state regulator I installed in my '61 in 2017:

https://cloversystems.designscience....Literature.pdf

Unfortunately, Clover is no longer producing these products.

It's a shame because it was a great unit.. Reliable, easy adjustment, etc.
The documentation that came with the product was great.
Wish I had bought 10!

Fred

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Old Jul 19, 2023 | 03:13 PM
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Originally Posted by radiomanpo2
Any one having trouble with voltage regulators? Bought two to replace mine and they put out a constant 18 volts. Had to buy from local generator shop that worked. Is there a specific part # for 1962 regulators
My 69 had a problem with the original Delco coil wound VR, sometimes it wouldn't charge, or it was too high when it did (15.5V) I cleaned the contacts with solvent, and turned the adjustment screw for CCW 1/4 turn on the non-cut off relay, works fine now and Voltage is at 14.5 at start up. I also bought a new electronic regulator as a back up, haven't needed it yet.
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