Voltage Reg
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Joined: Jan 2007
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From: Ft. Riley, KS
Voltage Reg
Hi,
So how would i know if the voltage reg is bad? The reason I ask is my fuses seem to be getting 14.30 volts w/eng running to me it seems high, tho I dont check that part of the truck alot so i cant remeber LOL. All i wanted to do was hook up the choke to the reg. and that whole 14 pluse seemed way to high for a electric choke correct?
thanks
So how would i know if the voltage reg is bad? The reason I ask is my fuses seem to be getting 14.30 volts w/eng running to me it seems high, tho I dont check that part of the truck alot so i cant remeber LOL. All i wanted to do was hook up the choke to the reg. and that whole 14 pluse seemed way to high for a electric choke correct?
thanks
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From: MA
Hi,
So how would i know if the voltage reg is bad? The reason I ask is my fuses seem to be getting 14.30 volts w/eng running to me it seems high, tho I dont check that part of the truck alot so i cant remeber LOL. All i wanted to do was hook up the choke to the reg. and that whole 14 pluse seemed way to high for a electric choke correct?
thanks
So how would i know if the voltage reg is bad? The reason I ask is my fuses seem to be getting 14.30 volts w/eng running to me it seems high, tho I dont check that part of the truck alot so i cant remeber LOL. All i wanted to do was hook up the choke to the reg. and that whole 14 pluse seemed way to high for a electric choke correct?
thanks
14.3 volts sounds right to me... When the alternator is running you get the voltage above 12 volts..
The voltage regulators job is to maintain a constant voltage.. If the voltage is fluctuating up and down then I would suspect that..
You should be fine with the choke..
MSEE
Joined: Apr 2004
Posts: 10,386
Likes: 35
From: Austin, TX
The choke needs to run from the stator terminal of the alternator. It's marked with an 'S'. It's a 14 volt AC three phase signal. If you put your DC meter on it, it shows up at about 7 volts RMS. This is fine. You want to use this signal because it's only hot when the motor is turning.
MSEE
Joined: Apr 2004
Posts: 10,386
Likes: 35
From: Austin, TX
No, you shouldn't. It's not saying 7 volts because anything is wrong. It's saying 7 volts because it is not a DC signal. It swings from zero volts to 14 volts, with many slopes in between. When you set your meter to DC and read it, it sees the low frequency components of the signal, which sit around 7 volts. You don't need to rewire anything; it's supposed to be this way. This is more than enough to heat up the choke. It came from the factory this way.
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From: Ft. Riley, KS
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MSEE
Joined: Apr 2004
Posts: 10,386
Likes: 35
From: Austin, TX
I said not to change the factory wiring...unless I'm reading your post wrong? If you're saying you already changed it, then yes you need to switch it back to the factory setup.
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MSEE
Joined: Apr 2004
Posts: 10,386
Likes: 35
From: Austin, TX
You need to undo what you did, and return it to the original factory setup. Disconnect the negative battery cable while you're working, and reconnect it while you're done.
In the future, ask questions first, cut wires later. You've essentially caused a lot of frustration for yourself over something that wasn't even wrong. "If it ain't broke, don't fix it"
In the future, ask questions first, cut wires later. You've essentially caused a lot of frustration for yourself over something that wasn't even wrong. "If it ain't broke, don't fix it"
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