Alternator Woes...

["Mike Igo" <migo@domain.elided>]

"lynx@domain.elided" <lynx@domain.elided> scribbled in the sand:

>   Hopefully someone can help me out. I've got a '69 IH 1200series 4x4 truck.
>recently the dash lights started to flicker slightly at idle. The headlights
>did a little too. The amp gauge would bounce around crazy from side to side.
>However when driving down the road everything seemed fine. This has went on
>for a couple weeks right after a changed the alternator. 

 

I just went through this 3 months ago with my 75 Scout (AKA "Kemo Sabe"). When I replaced/upgraded my old alternator I didn't realize that the old one was externally regulated. All you need to do is unplug the ext. regulator, jumper the 4 wires to one another (wire position #1 jumpers to wire position #3; wire position #2 jumpers to wire position #4). I chased this intermittent problem all over before figuring it out, tried the loose wire theory until early one morning I noticed the headlights pulsing in time to the swinging of the ammeter.  I'm not sure if it was a failed ext. regulator or that they cause problems with internally reg. units. Soon as I took it out all my woes went away. Haven't had a problem since, man how I love my (trusty) Scout!

 

Carpe Diem!

Mike Igo

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