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Old 05-23-2022, 10:08 AM
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Daubert20 Daubert20 is offline
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Join Date: Jul 2014
Location: Lehigh Valley, PA
Posts: 132
Default Voltage Regulator - Am I doing something wrong?

The voltage regulator on my 65 is a junkyard takeoff my Pop has had around since 1966. With that in mind I thought it might be good to replace or at least have a spare in the trunk in case it goes belly up.

I have a 63 amp alternator (NAPA RAY 2134013) and a brand new DieHard Gold battery.

I bought an AC Delco C635 (professional grade) from RøckAutø. Installed it, followed the attached procedure which was included with the new VR (headlights and accessories on for 1-2min). Ultimately battery light is on and the new VR is buzzing at idle. Send it back got a replacement, same thing happened.

Am I just unlucky and got two bad ones? Or am I doing something wrong? The old one works great, no battery light, no buzzing and 14.5V at the battery.
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