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Old 08-23-2007, 01:46 PM
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Chevy Alternator from Generator

I have a 1962 Chevrolet Impala with a 327. I added an HEI distributor and the Generator does not give me enough power. I added a new alternator (without a built in regulator)

The generator had a + and a - wire and a wire off of the generator marked (F). When I installed the alternator, I connected the obvious + and - and added a connector to my wire that was connected to (F) and connected it to the alternator marked (F). There is another connector on the alternator that is marked (I think R) , where does this go? My generator light in the dash stays lit so it is not charging.

Thanks

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Old 08-23-2007, 02:44 PM
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Quote:
Originally Posted by ddove1972
I have a 1962 Chevrolet Impala with a 327. I added an HEI distributor and the Generator does not give me enough power. I added a new alternator (without a built in regulator)

The generator had a + and a - wire and a wire off of the generator marked (F). When I installed the alternator, I connected the obvious + and - and added a connector to my wire that was connected to (F) and connected it to the alternator marked (F). There is another connector on the alternator that is marked (I think R) , where does this go? My generator light in the dash stays lit so it is not charging.

Thanks
Connect a switched wire to the R terminal (Remote) to excite the alt and let it charge.

I do take it that you are useing a delco alt?
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Old 08-23-2007, 05:09 PM
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Doc here,

I am going to ASSUME you are using an externally regulated stock type , like 38 amp alternator like they used back in the day...and not a 3 wire internally Delco internally regulated alternator as we have come to know it today..

That being accurate, This SHOULD be the wire diagram you your charging system, check and VERIFY that is correct..



If the wire verify's correctly, then the Regulator is either way out of adjustment, OR is dead..Either way, now is a GOOD time to upgrade to a solidstate regulator..VR 705 or VR 75 IIRC, $15 fazools at auto zombie, and is almost plug and play..It should last you longer than the car will..





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Old 08-29-2007, 07:27 AM
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You are correct.

Yes Doc, I am using an external regulator and an older style (new) alternator with no internal regulator. The car ran fine with the generator and the existing regulator on the core support. I just was not getting the power out of the generator that I thought I needed.

This all started when I put an HEI distributor in. Wired it all in with new wires and the car would backfire or pop. Me being so brilliant :-) figured it had to be a power issue not igniting the fuel fast enough. Come to find out I had the 5 and 7 plug wires switched. But now I have the alternator and brackets and might as well install it.
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Old 08-29-2007, 04:40 PM
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Doc here,

Then the diagram provided should be the one you need to follow..

AT this point though, I would consider the regulator upgrade to a solid state unit, (a VR 705 or VR 75, IIRC) ... Almost plug and play, works 1000% better than the mechanical one, AND will probably outlast the car two fold!! AND only $15 Fazools..




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Old 09-05-2007, 03:17 PM
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Doc, save me..

OK here is what I have. The car starts and runs good. When I cut the car off, the Generator light stays on in the dash.

Regulator
F goes to the F on the alternator
2 goes to the R on the alternator
3 goes to the positive battery terminal
4 goes to one side of the amp gauge, on to the + side of the alternator, and one small brown wire that leads to a connector under the washer bottle on the firewall. (this is where the problem is I think) Brown wire is to the gen light and it is wired into a constant positive source???

Also, my ground from the alternator goes to the core support under the regulator

Also have another positive wire coming from the other side of the amp gauge going to the battery.

Here is a question also. Under my regulator (mounted to the driverside of the radiator) is a small relay. Is this the headlight relay? I have one wire coming off of there going to the extra leg of the regulator as well as a larger red wire coming from the connector below the washer bottle. They were tied together when the generator was installed previously.

Are you confused now?

Thanks in advance.
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