Reply With QuoteHi theg, if your alternator setup is anything like my old 86 RRC, there should be three wires. The big one is obviously the output and the two smaller wires are for the alt. lamp on the instrument panel and the 'pulse' output for the tacho.
Deano
Master
SupporterWhere does the excite wire on my 89 rangie head to from the alternator to sense its voltage ?
ChatterBox
SubscriberHi theg, if your alternator setup is anything like my old 86 RRC, there should be three wires. The big one is obviously the output and the two smaller wires are for the alt. lamp on the instrument panel and the 'pulse' output for the tacho.
Deano
ChatterBox
SubscriberDouble post..........sorry
Deano
RoverLord
inside the dash to come off the ignition..
in a pinch for testing purposes you can tap the +12v to the coil
Dave
"In a Landrover the other vehicle is your crumple zone."
For spelling call Rogets, for mechanicing call me.
Fozzy, 2.25D SIII Ex DCA Ute
TdiautoManual d1 (gave it to the Mupion)
Archaeoptersix 1990 6x6 dual cab(This things staying)
If you've benefited from one or more of my posts please remember, your taxes paid for my skill sets, I'm just trying to make sure you get your monies worth.
If you think you're in front on the deal, pay it forwards.
Master
SupporterI see there are 2 wires connected to 1 of the connections . I think its the exciter terminal . I read that the dash light is the exciter feed / Can this be correct .
Ive got a glitch in my alternator developed yesterday . These are the symptoms .Lamp is glowing full on start up then glows very very dim from then on . Volts at battery stay at 14 to 14.2 when running . If I turn on the load with lights and high beam plus air con there is no output lifting voltage , the voltage drops to static at about 12.4 . Appears the alt cannot deliver the load but whats causing the lamp to glow very dim constantly .
Could this be a voltage problem to the exciter terminal ?Affecting the function of the voltage regulator .
Master
SupporterI think I will first confirm which is the exciter terminal then try poaching power from coil +ive as you suggest and see how the voltages behave .Originally Posted by Blknight.aus
RoverLord
sounds like the regulators about stuffed and has a high resistance to its earth or you have diodes out...
the big clue being the lights on when the ignitions off.
Dave
"In a Landrover the other vehicle is your crumple zone."
For spelling call Rogets, for mechanicing call me.
Fozzy, 2.25D SIII Ex DCA Ute
TdiautoManual d1 (gave it to the Mupion)
Archaeoptersix 1990 6x6 dual cab(This things staying)
If you've benefited from one or more of my posts please remember, your taxes paid for my skill sets, I'm just trying to make sure you get your monies worth.
If you think you're in front on the deal, pay it forwards.
Master
SupporterNo . The light only is on when ignition is turned . Bright full on while cranking then dimms down to just a faint glow when running .
No light on when ignition is off .
RoverLord
sounds like youve got a couple of diodes going open circuit in the rectifier
Dave
"In a Landrover the other vehicle is your crumple zone."
For spelling call Rogets, for mechanicing call me.
Fozzy, 2.25D SIII Ex DCA Ute
TdiautoManual d1 (gave it to the Mupion)
Archaeoptersix 1990 6x6 dual cab(This things staying)
If you've benefited from one or more of my posts please remember, your taxes paid for my skill sets, I'm just trying to make sure you get your monies worth.
If you think you're in front on the deal, pay it forwards.
AT REST
The alternator is excited via the ignition and the dash bulb. The voltage sense is connected internally via the diodes and the main battery terminal. When the regulator see 12V inside the alternator the excite circuit is the same voltage each end, ie the globe goes out. If your globe glows faintly it may be a bad connection or earth. If the globe glows about 1/2 brightness one of the main power diodes is open circuit. Max output of the alternator is then halved.
Posting Permissions
| Search AULRO.com ONLY! |
Search All the Web! |
|---|
|
|
|
Bookmarks