[SEL] OT - John Deere wiring diagram needed

[bill at antique-engines.com]

Peter - here's what I found:
A check showed that the light that was staying on was the ALT/BATTERY
light! Someone has worked on this in the past and had the wrong light in
the wrong hole.
The real oil light was going out when it started. I did trace the oil
pressure wiring. Switched battery +12 to one side of bulb, other side
right to sender.

So, now to figure out why the ALT light stays on - I suspect regulator -
it's a solid-state unit mounted on the shroud, well, sort of in it, for
cooling I believe - it's an Onnan engine on this 318.
The stuff the regulator is sealed with is pulling out. Can't be good.

Bill


>
> FWIW the oil light is usually fed positive 12V and the oil switch
> grounds it to turn the light on. Could you have a wrong wire on the
> light?  Does that 'spare' lead have anything to do with the oil
> switch, a quick continuity check would confirm both.
>
> Peter
> --
> Peter A Forbes
> Email: listerdiesel at gmail.com
> Web: www.oldengine.org/members/diesel
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