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I have a problem with my TR6 15 ACR alternator. The IND lamp is glowing and gets brighter when the engine is revved. I have 13.6V on the ign switch side (white) and also the output from the alternator.

 

The otherside of the IND lamp (brown/yellow wire) has 17.6V. Is this fault likely to be caused by the regulator or diode pack?

 

Cheers

 

Graeme

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If the brown / yellow wire has 17.6V on it, then the regulator is not doing it's job, the odd thing is that the main O/P has not tried to follow it up, but is only at 13.6V.

May be worth checking your earthing between body / chassis / engine.

 

Circuit attached (I hope) http://www.tb-training.co.uk/images/Image138.gif

 

Bob.

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Thanks for your help.

 

It was the diode pack that had a defective diode allowing the 17.6 V to the warning light.

 

Cheers

 

Graeme

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