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Re: Alternator/Isolator/Battery Problems/Questions [message #247677 is a reply to message #247443] Wed, 16 April 2014 23:10 Go to previous message
WildBill   Canada
Messages: 232
Registered: January 2014
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Senior Member
Dim glowing alternator light can be caused by a bad diode trio inside the alternator. It pulls ac off the stator and turns it into dc. Should one of t he 3 diodes in the diode trio fail your alternator light will glow. It's your power suply to the regulator. $2.00 piece at best but needs to work.

And yes in regards to the fuse, the light has 12 volts to what people would normally think the ground side of the bulb. Alternator not charging provides the ground to up illuminate bulb. Burnt out bulb, charging system won't excite, might with higher rpm's due to residual magnetism. Bulb turns out because of 12v+ on both sides of bulb when charging system working

[Updated on: Thu, 17 April 2014 11:37]

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