1956 Chevrolet Bel Air L6 charging issue

85

Asked by Apr 13, 2012 at 11:27 PM about the 1956 Chevrolet Bel Air

Question type: Maintenance & Repair

Just got done rebuilding the L6 to my bel air. For some unknown reason, the battery fails to charge. I measured the output at the generator with the engine idling and I could not get a reading. Perhaps the generator needs a nice clean ground through the fresh paint on the generator mount? With engine idling, the gen. light is on and the battery reads only 11.8 volts. All other connections are good and the inside of the generator was cleaned. All parts are there and intact. Voltage regulator box has not been adjusted since I got the car.

5 Answers

12,005

I think your right about the paint issue. If you get good connections you should be charging again.

1 out of 1 people think this is helpful.
85

turns out you can test the generator by using it as a motor. With the belt off, the generator should spin with twelve volts hooked up and draw like 5 amps.

12,005

I remember my dad doing that in his 57 chevy

1 out of 1 people think this is helpful.
89,855

You might have to flash the field to get it to work. It's been a long time since I've done any DC generator work (40yrs?). Do a internet search to find out how to do it.

1 out of 1 people think this is helpful.
85

Yeah I did a flash test and got like 18 volts. turns out the voltage regulator wasn't grounded so it had no ground to give to the field coils. No ground to the field coils means no magnetic field. For anyone else reading this, in order to flash the field you must disconnect the termanal that supplies power from the regulator to the rest of the car. This way, when you flash it you won't fry all the wiring in the car. Secondly hook up a voltmeter to the output on the regulator (the one you just disconnected, you want to see how many volts would have went to the rest of the car). Finally, ground the field or negative termanal on the generator directly to a clean ground. Do so only for a moment, as it is hard on the generator because it is generating its full voltage potential (maybe as many as 30 volts!). This test can be used to can determine the condition of the generator and the regulator.

Your Answer

Add photo

Related Questions

  • 1956 Chevrolet Bel Air L6 charging issue 1 answer

    Just got done rebuilding the L6 to my bel air. For some unknown reason, the battery fails to charge. I measured the output at the generator with the engine idling and I could not get a reading. Perhap...

    Chevrolet Bel Air

    -

    Maintenance & Repair

  • 1956 Belair clock solenoid issue 3 answers

    Please see the photo to better understand the question. Basically, my clock is good to run once until the spring winds down, because the point stays open. Assuming the points are closed (yellow arrow,...

    Chevrolet Bel Air

    -

    Maintenance & Repair

  • 1962 Bel-Air generator issue 1 answer

    1962 Bel-air 283 8-cylinder Hey. New to the forum and already needing info. Anyone have any ideas on why my generator light keeps flickering when I put the car into gear? It started doing this after ...

    1962 Chevrolet Bel Air

    -

    Maintenance & Repair

  • 1955 Bel Air Power Glide Issue 1 answer

    I think the Power Glide on my 1055 Be Air is about to go. Clunks hard going into gear, and doesn't shift smooth at all. I have the 235 6 cylinder engine. Can anyone recommend a rebuilder or where I ca...

    1955 Chevrolet Bel Air Base

    -

    Maintenance & Repair

Bel Air

Looking for a Used Bel Air in your area?

CarGurus has 317 nationwide Bel Air listings and the tools to find you a great deal.

ZIP:

Search Chevrolet Bel Air Questions

Chevrolet Bel Air Experts

#1 WheelerDealer
WheelerDealer
Reputation 180
#2 tenspeed
tenspeed
Reputation 170
#3 joemom
joemom
Reputation 130
View All

Related Models For Sale

Used Chevrolet Corvette
351 Great Deals out of 20,187 listings starting at $3,688
Used Chevrolet 210
66 listings