Re: AMP gauge shows Overcharging
[Re: wally426ci]
#1818326
05/04/15 11:05 AM
05/04/15 11:05 AM
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Joined: Sep 2007
Posts: 14,889 up yours
Supercuda
About to go away
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About to go away
Joined: Sep 2007
Posts: 14,889
up yours
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Well, you spent a lot of money for nothing so far.
Do you have any add on loads (stereo, electric fuel pump, etc) wired directly to the battery?
That would show a charge on the system.
They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.
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Re: AMP gauge shows Overcharging
[Re: wally426ci]
#1897952
08/23/15 10:22 PM
08/23/15 10:22 PM
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Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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rebuilt alt/new reg & we can assume (for now) that they are OK & it is a wiring prob. I would pull the 2 field leads from the alt and the triangle connector from the reg & with jumper wires run 12V to one of the alt field terminals and to the top terminal at the reg triangle (both are the blue wire circuit) then jumper wire connect the other alt field terminal to the side reg terminal & wouldn't hurt to jumper the alt case and the reg case both to the batt neg & fire it up & see if it straightens out. If not I'm thinking the rebuilt alt is bad but one thing at a time. You might visual the brushes/brush holders for anything out of place
live every 24 hour block of time like it's your last day on earth
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Re: AMP gauge shows Overcharging
[Re: wally426ci]
#1898016
08/23/15 11:29 PM
08/23/15 11:29 PM
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Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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reportedly some digital voltmeters are hard to get the numbers to settle down but if the amp gauge is swinging wildly then that definitely needs to be addressed/taken care of before considering an upgrades. We'll solve it & go from there. The MADD info is good if you don't mind losing your ammeter function (I do mind). I clean every terminal/connection and add a voltmeter to switched 12V & relay the headlights/heater/ac directly to the alt batt stud with relays & do Nachos bulkhead parallel bypass. the swinging ammeter sure sounds like a bad electromechanical reg or the alt. Keep us posted. Your batt is a good one right? EDIT had an ammeter that would go all the way to charge when I revved the end but came back to near 12 o'clock at idle/lower speed. it was the electronic reg. more info on WHEN it is wildly swinging (how far/which way)
Last edited by RapidRobert; 08/24/15 12:57 AM.
live every 24 hour block of time like it's your last day on earth
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Re: AMP gauge shows Overcharging
[Re: wally426ci]
#1898216
08/24/15 11:27 AM
08/24/15 11:27 AM
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Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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It's crazy. Idles at center drops just below in gear (like it always has) and goes up as you rev it.
Is it possible to blow the alternator with a problem in the system?
I have one of his in my truck without issue.
This is the 3rd volt regulator with no change. I will try jumpers and report back. (1) sounds like classic full fielded reg (when tghe RPM's go up to where the alt can put out enough to peg the ammeter, the (faulty) reg let it do so however you have replaced it several times. (2) not likely in this case but the alt field system could have an improper grounded in the green wire side internally that is full fielding it (check those brushes/brush holders) (3) swap the good alt that is in your truck in & we'll have some answers in less than an hour. I'm thinking I (might) do that before the jumpers unless you have lengths of wire/alligator clips made up/ready to be used. Holler back with any news
live every 24 hour block of time like it's your last day on earth
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Re: AMP gauge shows Overcharging
[Re: wally426ci]
#1898664
08/24/15 10:20 PM
08/24/15 10:20 PM
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Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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(1) remove the (2) blue and green field wires from the alt and (2) pulling the triangle connector from the reg then (3) run 12V from batt pos post or starter relay batt stud to (3A) either of the male alt field terminals and (3B) to the top male nub in the reg triangle and (4) run a seperate jumper (only) from the other male alt field terminal to the "side" terminal in the reg triangle connector. Do nothing with the alt "batt" stud. Jumper the alt case to the batt neg and jumper the reg case to the batt neg. this takes any and all potential wiring harness dead shorts/loose or bad (wiring) connections out of the equation & only leaves the alt and the reg IF the main charge wire from the alt "batt" stud to/thru the bulkhead/thru ammeter & out back to the battery that there are no loose connections/terminals there in that circuit from alt to battery. check the bulkhead (4 terminals) 1 male/female in and 1 male female out for good contact and the ammeter terminals for tightness (bulkhead is a frequent culprit) and visual on the alt brushes/brush holders. then fire it up at a fast idle with a fully charged batt & see what the ammeter does. Holler back when you can
live every 24 hour block of time like it's your last day on earth
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Re: AMP gauge shows Overcharging
[Re: wally426ci]
#1898683
08/24/15 10:52 PM
08/24/15 10:52 PM
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Joined: Apr 2007
Posts: 289 Lowes
steve660
enthusiast
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enthusiast
Joined: Apr 2007
Posts: 289
Lowes
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Had similar problem. When driving and RPM was increasing the ammeter would peg itself and volt meter would read 16 + volts and lights would get SUPER bright.
Tried diff alternators, regulators, checked wiring, bypassed bulkhead connecter and ammeter, nothing.
Finally put on Powermaster 1 wire alternater and no more charging problems. Im sure this just covered up whatever was wrong but its been running like this for 5 years now, no more problems.
PSO headed 632 from MM. Cracked cylinder, loose valve seats, low oil pressure, low cylinder pressure. ..... Now its a door stop....
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Re: AMP gauge shows Overcharging
[Re: wally426ci]
#1898715
08/24/15 11:31 PM
08/24/15 11:31 PM
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Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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I do get a small spark when connecting negative battery cable to battery post..... was that with the key/eng/all lights etc/everything off or with the engine running? (You dont want to pull a batt cable when the eng is running)
live every 24 hour block of time like it's your last day on earth
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