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 Alternator Noise 
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Firing on two.
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Joined: March 21st, 2013, 12:04 am
Posts: 1581
Location: Exeter, Devon
Post Alternator Noise
Hi all
Alternator is making a noise, but if I remove the exciter wire, the noise stops!
Is this normal?
Cheers

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If you can't fix it with a hammer, it's probably electrical (or, an electric fuel pump!) ....


May 9th, 2017, 7:00 pm
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Firing on two.

Joined: April 20th, 2017, 10:55 pm
Posts: 107
Post Re: Alternator Noise
Removing the exciter lead will cause a loss of demand, therefore the alternator will be under no load. When under load, it is likely to produce a sort of moan, which will alternate when the Voltage Control Regulator cuts the alternator in and out.

Unless the noise is that of a worn bearing. Depends on what sort of noise you are hearing.


May 9th, 2017, 9:28 pm
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Firing on two.
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Joined: March 21st, 2013, 12:04 am
Posts: 1581
Location: Exeter, Devon
Post Re: Alternator Noise
Thanks Derek
Moaning is a good description.. So that would appear normal then. As I have a spare that needs attention, I may recondition one of them and see if that helps. I have so much noise and vibration from the engine/gearbox that I will keep picking at it and replacing/reconditioning parts.
Thanks again :)

_________________
If you can't fix it with a hammer, it's probably electrical (or, an electric fuel pump!) ....


May 9th, 2017, 11:15 pm
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