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Anyone ever see this happen?

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Old 05-09-2019, 10:05 AM
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Car: 92 Camaro Z28
Engine: 305 TPI
Transmission: T5
Anyone ever see this happen?

92 305TPI. Will start and run then stall after about 30 seconds. Unhook the alternator and it will stay running, and soon as I plug it back in.......dead.

AC Delco alternator about 3-4 years old. Just ordered a Powermaster 140Amp.
Old 05-09-2019, 10:52 AM
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Re: Anyone ever see this happen?

What happens with system voltage when you plug it in?
Old 05-10-2019, 05:14 AM
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Car: 92 Camaro Z28
Engine: 305 TPI
Transmission: T5
Re: Anyone ever see this happen?

Not sure, I didn't test. Good suggestion tho. Got a Powermaster 140amp, but I'll have to take a few readings before I swap them.
Old 05-10-2019, 02:10 PM
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Car: 86 Imponte Ruiner 450GT, 91 Formula
Engine: 350 Vortec, FIRST TPI, 325 RWHP
Transmission: 700R4 3000 stall.
Axle/Gears: 9 Bolt Torsen 3.70
Re: Anyone ever see this happen?

Powermaster is garbage. Cancel the order. Had two fail - one about 3 months in, and the other about 7 months in. Complete junk. I have disassembled their products a couple times now and the manufacturing quality is horrible.

https://www.dcpowerinc.com/

GD
Old 05-10-2019, 03:27 PM
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Re: Anyone ever see this happen?

I agree with GD.

in fact I'd actually use the opportunity to upgrade to an AD244 alternator. Bad *** alternator and factory GM...

Do a search on AD244....theres a few how-to threads.
Old 05-11-2019, 10:50 AM
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Car: 92 Camaro Z28
Engine: 305 TPI
Transmission: T5
Re: Anyone ever see this happen?

Appreciate the info. have a show this weekend. So Im stuck with the Powermaster but already wrote down this info for when it craps out. Thanks guys!
Old 05-11-2019, 05:17 PM
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Car: 84 El Camino
Engine: 360 TPI
Transmission: 700R4
Axle/Gears: 3.42 + Truetrac, Moser 28 Spline
Re: Anyone ever see this happen?

Originally Posted by dmyruski
92 305TPI. Will start and run then stall after about 30 seconds. Unhook the alternator and it will stay running, and soon as I plug it back in.......dead.

AC Delco alternator about 3-4 years old. Just ordered a Powermaster 140Amp.
Agree with GD and ULTM. Most alternators from the big box stores are junk. Use OEM Delco or the AD244!
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