PeachParts Mercedes-Benz Forum - what part of the alternator breaks when running without battery?

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henrydupont

12-06-2006 11:54 AM

what part of the alternator breaks when running without battery?

I have a car here and the battery was disconnected whilst the car was idling. the alternator broke straight away of course. is it necessary to replace the whole unit, or just the resistor on the back?

rrgrassi

12-06-2006 12:31 PM

rectifying diodes and/or regulator can pop on you. The battery also acts as a voltage regulator, to a point.

Johnhef

12-06-2006 12:37 PM

interesting. I've gone with a friend to pick up a car i bought before to find the battery stone dead. I started the diesel, took out the battery put it in the gasser and drove both cars home with no ill effects to the diesel.

henrydupont

12-06-2006 04:24 PM

I've had it happen once and seen it twice...
I'll just change the whole thing.

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