Re: 16 volts
[Re: solidcam]
#89223
07/15/08 11:26 PM
07/15/08 11:26 PM
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Anonymous
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Anonymous
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Quote:
I would first go to battery without anything switched on and read(using a digital multimeter) stationary voltage;you should get something between 12.2 and 12.8 volts.Then start the engine and run at say 1800 rpm and measure battery voltage,depending on the charge in the battery you should get anything up to13.8/14 volts.IF you are getting 16 volts accross the battery doing the above you have a regulator fault.Anything over 14 volts is going to cause damage.
That is certainly not correct, depending on the temperature, voltage can be up in the 14.5-nearly 15V range. 15, though, for continuous operation is getting somewhat high, and 16 AT THE BATTERY is certainly high.
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Re: 16 volts
[Re: solidcam]
#89224
07/15/08 11:29 PM
07/15/08 11:29 PM
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Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
70Cuda383
Too Many Posts
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Too Many Posts
Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
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I see you're in Canada.
What are your air temps right now?
I did the same thing you did, only I removed my entire computer when I swapped the V6 to a big block in my Dakota. I kept the stock alternator though.
wired it up the same.
when it was cold outside--60 degrees or less, I had 14.5 at idle and 16 above 1200 rpms. now that it's around 90, my volts are between 13 and 14.5
I wouldn't worry too much about it, but you could still check your voltage at the sensing wire.
**Photobucket sucks**
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Re: 16 volts
[Re: 70Cuda383]
#89225
07/15/08 11:31 PM
07/15/08 11:31 PM
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Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
70Cuda383
Too Many Posts
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Too Many Posts
Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
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Quote:
I see you're in Canada.
What are your air temps right now?
I did the same thing you did, only I removed my entire computer when I swapped the V6 to a big block in my Dakota. I kept the stock alternator though.
wired it up the same.
when it was cold outside--60 degrees or less, I had 14.5 at idle and 16 above 1200 rpms. now that it's around 90, my volts are between 13 and 14.5
I wouldn't worry too much about it, but you could still check your voltage at the sensing wire.
by the way, my battery is now in my bed, so that's nearly 30 feet of wire for the alternator to charge through, and my guage only has about 7 feet of wire between it and the alternator, although I haven't checked my voltage at the battery, I'm sure it's a few volts less than what I'm reading on the gauge--not that this helps you at all, but just further details on my set-up
**Photobucket sucks**
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Re: 16 volts
[Re: polara408]
#89231
07/16/08 08:39 PM
07/16/08 08:39 PM
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Joined: Jan 2003
Posts: 18,428
UPPER MICHIGAN, MARQUETTE COUN...
NITROUSN
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 18,428
UPPER MICHIGAN, MARQUETTE COUN...
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Quote:
The 12v wire to the regulator is seeing about 2v less than the battery if it is not running with the ignition in run or if the truck is running. 12.4 at the battery about 10.2 at wire not running. 15.5 at the battery running 14.6 at the wire. Alt. is still pumping out close to 16v.
Make sure you are not feeding the regulator through a resistor. One simple test/check is to unhook the 12 supply wire from the regulator. Then run a jumper direct from the battery positive to the regulator. Then see what it does.
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