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Re: [T3] Electrical diagnosis


On 14 Sep 2001, at 20:22, Daniel Baum wrote:

> First of all, I fixed a couple of crossed wires (I am rewiring the car
> from scratch) and now when I start the car all of the dash warning
> lights go on, and then off again, except the generator light. This
> would be normal behaviour in any other car I have driven but is a Type
> 3 supposed to do this? I have never driven any other old VW so I
> simply don't know.

The lights should go on when you turn the key ON and then go out 
after the engine starts.

> The results are:
> 
> Generator no load regulated voltage check - multimeter showed 0 volts,
> i.e. something wrong somewhere between generator amd regulator.
> 
> Generator no load unregulated voltage check - multimeter showed 36
> volts when revving the engine. Thus generator is Ok and so voltage
> regulator must need replacing. This despite the fact that my generator
> looks like a rusty old piece of junk. I am really surprised that it
> checks out OK; this just shows that the Germans really build things to
> last!

I think what you have shown is that the generator is good and that 
there is a mistake in the generator/regulator wiring. It might also be 
a regulator fault.

I'm sending you my generator faq which should help you sort it out.

-
Jim Adney
jadney@vwtype3.org
Madison, WI 53711-3054
USA

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