Alt Volts ? - Ford Powerstroke Diesel Forum
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post #1 of 17 Old 05-19-2012, 06:36 AM Thread Starter
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Alt Volts ?

Just installed a DC Power 185 Alternator. At idle it shoes 12.2 volts at 2500 rpm still shows 12.2. I was thinking I should see 13.6 - 14.0 volts at 2500 rpm. What volts are you all getting?

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post #2 of 17 Old 05-19-2012, 07:07 AM
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I have been getting 13.4-13.7 while running. I do have dual alternators also.

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post #3 of 17 Old 05-19-2012, 10:12 AM
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I get 14 volts at idle, after the glow plugs turn off. That's also with nothing on. With the parking lights on, it's about 13.7 volts.

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post #4 of 17 Old 05-19-2012, 10:16 AM
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12.2 isnt good.. Im getting 14.4 on startup and 13.8 or higher running warm. You want to be in the 13s to be safe.

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post #5 of 17 Old 05-19-2012, 10:24 AM
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Quote:
Originally Posted by DesertSmoker View Post
Just installed a DC Power 185 Alternator. At idle it shoes 12.2 volts at 2500 rpm still shows 12.2. I was thinking I should see 13.6 - 14.0 volts at 2500 rpm. What volts are you all getting?
How long after start up



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post #6 of 17 Old 05-19-2012, 11:38 AM Thread Starter
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Ran it this morning in town max volt was 12.4 I think there might be a problem with this alt.

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post #7 of 17 Old 05-19-2012, 05:44 PM
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Upper 13s. low 14s when GPs shut off and alt kicks on.

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post #8 of 17 Old 05-19-2012, 07:31 PM
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Quote:
Originally Posted by DesertSmoker View Post
Ran it this morning in town max volt was 12.4 I think there might be a problem with this alt.
I venture to guess the voltage regulator is no good.

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post #9 of 17 Old 05-20-2012, 07:46 AM
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Yea...lol my oem alt is 13.5-13.7 after the gp shut off.

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post #10 of 17 Old 05-20-2012, 07:55 AM
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mid 13s is fine

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