 Voltage regulator ?, installed new |
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| jrblackbox |
 Nov 5 2019, 04:25 PM
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Member  Group: Members Posts: 285 Joined: 8-September 15 From: Easton, CT Member No.: 19,140 Region Association: None 
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The alternator (red) light would blink faintly when using the turn signals, I researched here and figured it was the voltage regulator. I ordered a new one (Beru) and received it today. It is quite smaller than the Bosch, it doesn't seem to sit properly in the plug and the 2 screwholes don't line up perfectly. tried it anyway the car a 71, started right up as usual, but the alt light is still blinking faintly, no change. what now? TIA for any advice.
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| Spoke |
Nov 6 2019, 06:56 AM
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Jerry Group: Members Posts: 7,185 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None
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QUOTE(jrblackbox @ Nov 5 2019, 05:25 PM)  I ordered a new one...no change. what now? TIA for any advice. Sounds like the issue is not the VR. Mechanicals seem in order (belt). Time to break out the voltmeter. Take 4 voltage measurements all referenced to a chassis stud (Not the engine): D+ DF D- B+ D+, DF, D- can be found on the alternator connector at the relay board. Jam the voltmeter probe into the connector. Do not disconnect anything. B+ is the battery + terminal. All easily accessible. Should take less than a minute to do all 4 measurements. The difference in voltage between D+ and B+ is the voltage lighting the GEN light. Do the measurements with these conditions after the engine is warmed up: 1) Idle w/all electrics off 2) Idle w/Headlights on 3) 2k RPM w/all electrics off 4) 2k RPM w/Headlights on These voltage "sets" will give a good indication of the health of your charging system. Should take about 5 minutes to do all the measurements. Write them down as you take the measurements. Attached thumbnail(s) 
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Posts in this topic
jrblackbox Voltage regulator ? Nov 5 2019, 04:25 PM
Tbrown4x4 Is the belt tight? Alternator brushes could be wor... Nov 5 2019, 04:46 PM
jrblackbox
Is the belt tight? Alternator brushes could be wo... Nov 5 2019, 04:56 PM Tbrown4x4 Well, you really can't test much on the back o... Nov 5 2019, 07:29 PM FlacaProductions If you're still looking for a voltage regulato... Nov 5 2019, 09:14 PM bdstone914
Pull the alternator harness plug at the relay bo... Nov 6 2019, 06:57 AM jrblackbox
Pull the alternator harness plug at the relay b... Nov 6 2019, 04:27 PM 914Sixer Many articles about the replacement VR, no matter ... Nov 6 2019, 11:23 AM |
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