Alt cuts out at 3.5k
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Joined: Aug 2007
Posts: 2,529
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From: Fairhope, AL
Car: 89RS(other cars & pics in vBgarage)
Engine: LO3, 305 TBI Mildly Modified
Transmission: BakerBuilt 700R4 w/B&M Megashifter
Axle/Gears: 3.23 Auburn Pro Series LSD
Alt cuts out at 3.5k
i have never seen an alternator do this, its cuts out at 3.5k RPMs and dont work till its under that again
goes from 14.4 v to 12.x v when it cuts out
its a 200 amp powermaster
just started today to, any ideas
goes from 14.4 v to 12.x v when it cuts out
its a 200 amp powermaster
just started today to, any ideas
Thread Starter
Supreme Member
iTrader: (2)
Joined: Aug 2007
Posts: 2,529
Likes: 1
From: Fairhope, AL
Car: 89RS(other cars & pics in vBgarage)
Engine: LO3, 305 TBI Mildly Modified
Transmission: BakerBuilt 700R4 w/B&M Megashifter
Axle/Gears: 3.23 Auburn Pro Series LSD
Re: Alt cuts out at 3.5k
Senior Member
Joined: Jul 2006
Posts: 609
Likes: 0
From: Oslo, Norway
Engine: '85 Monte SS L69 305
Transmission: TH 200-4R
Axle/Gears: 3.23
Re: Alt cuts out at 3.5k
I made a regulator once for an outboard, and it would behave just like that. It was a design flaw, but I guess that's not quite the issue you've got.
The only things that comes to mind is brush float caused by worn brushes, or the magnet wire in the rotor having a flaw somewhere and being pulled apart by the sentrifugal force.
The only things that comes to mind is brush float caused by worn brushes, or the magnet wire in the rotor having a flaw somewhere and being pulled apart by the sentrifugal force.
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