stevetzoid
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| posted on 12/11/06 at 10:30 AM |
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Alternator output
Hi all, I think I blew the diodes in my alternator yesterday, I missed a gear and revved the engine too high, How difficult is it to change the diodes
I am electrical just wondered if anyone knows.
Regards Steve Evans.
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nitram38
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| posted on 12/11/06 at 10:41 AM |
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How do you know they are blown, have you used a meter?
You could replace them yourself, but I would recommend that you go to someone who reconditions them.
I have had parts replaced on alternators/starters only for them to go a few weeks later.
Normally reconditioners give you a 3 month warranty.
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RazMan
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| posted on 12/11/06 at 10:58 AM |
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I doubt that overrevving could blow the alternator.
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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britishtrident
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| posted on 12/11/06 at 11:09 AM |
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Over revving can't blow the diodes but it can damage the rotor windings, I have seen it on Lucas-Magnetti Marrelli alternators especially
re-manufactured ones, the centrafugal force breaks the connection between the rotor winding and the slip rings. Usually obvious when you strip the
alternator and can sometimes be fixed with just a bit of soldering.
[Edited on 12/11/06 by britishtrident]
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stevetzoid
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| posted on 12/11/06 at 12:55 PM |
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Hi I have a digidash that has the voltage readout this is how I know the output is faulty used to be about 14V DC with engine running.
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nitram38
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| posted on 12/11/06 at 12:57 PM |
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What is the voltage now?
It could still be a knacked rotor/brush
[Edited on 12/11/2006 by nitram38]
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stevetzoid
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| posted on 12/11/06 at 01:33 PM |
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Hi battery voltage is all that there is and that went flat in the end.
Steve.
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