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Hooking up external voltage regulator to 2 alts


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I have a singer 270 alt with the blue transpo adj regulator. I have read on the forums that it can work with 2 alts. I have a excessive amperage 300 with a internal regulator. So I opened the cover and removed the internal regulator. I then spliced into the wire going to the singer and hooked it up the same way to the EA. With both hooked up I get no charge from either. If I unhook the ea the singer charges. Wondering if I missed something when removing the internal regulator. I just unbolted it and desoldered the one connection.

Any ideas?

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After spending hours researching I think I figured it out. On the singer the bolt to attach the field wire had a plastic washer I believe to not ground the field wire since the bolt tightens into threads on the housing. I did not have one on the EA. To verify my idea I grabbed the internal regulator and sure enough it is just plastic on the top where the bolt tightens down, with a contact on the bottom.

Going to retry tonight.

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following

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i highly recommend using 1 blue box regulator per alt. IT becomes less reliable when you run more than 1 alt on them.

all you should need is the transpo on a relay that turns on with the car. then both alts gorunded to car, and a positve field wire going from regulator to one side of the rotor contact.

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i highly recommend using 1 blue box regulator per alt. IT becomes less reliable when you run more than 1 alt on them.

all you should need is the transpo on a relay that turns on with the car. then both alts gorunded to car, and a positve field wire going from regulator to one side of the rotor contact.

Thanks for the advice. I may pickup a 2nd one after getting this working. I have the regulator hooked up with a relay, and it runs the singer just fine. But it wouldn't run the EA by itself. So hopefully tonight when I put that plastic washer in, it will start working. I was pretty frustrated last night so I took them both out and just started going over everything.

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i highly recommend using 1 blue box regulator per alt. IT becomes less reliable when you run more than 1 alt on them.

all you should need is the transpo on a relay that turns on with the car. then both alts gorunded to car, and a positve field wire going from regulator to one side of the rotor contact.

Thanks for the advice. I may pickup a 2nd one after getting this working. I have the regulator hooked up with a relay, and it runs the singer just fine. But it wouldn't run the EA by itself. So hopefully tonight when I put that plastic washer in, it will start working. I was pretty frustrated last night so I took them both out and just started going over everything.

it sounds like you are shorting the field on the one alt. hopefully the transpo is still fine.

Buyer/Seller Feedback Thread: http://www.stevemead...5015-bump4life/
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My SPL Log: http://www.stevemead...__fromsearch__1

BMW M340 xDrive

Stock, for now. Corner Load 10" maybe soon. But does 10s in the 1/4...
Best Scores out of a trunk
153.0 sealed legal full tilt clamped 5524 @ 42 hz
154+ windows down, 155+ kick

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