My Wassell-style electronic regulator/rectifier packed up recently. I gather others have had similar failures.
Interestingly, the cause might be something else: I was surprised to find that my alternator stator was shorted to earth!
If that happens, uncontrolled current will flow in the rectifier - and presumably cause it to fail eventually.
I found some cracked and broken-down insulation in the alternator stator and have been able to successfully repair it. It's now showing several megohms of resistance to earth (as it should).
Upshot: if you've got an electronic regulator/rectifier, it's probably a good idea to periodically check that the alternator stator is free of any short to earth...
Electronic rectifier/regulator failures
- clanger9
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- Joined: Sat Jun 20, 2015 9:38 am
- Location: Chester, UK
Electronic rectifier/regulator failures
1989 Moto Morini Dart 350
1993 Ducati 750SS
1993 Ducati 750SS
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- Member
- Posts: 452
- Joined: Tue May 27, 2003 1:00 am
- Location: SHROPSHIRE UK
Re: Electronic rectifier/regulator failures
Get yourself a voltage regulators D V R 2 , solid state they are suitable for 6 or 12 volts and will fit in the old Lucas cut out box if you want to hide it.
- ajscomboman
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- Location: HAMPSHIRE UK
Re: Electronic rectifier/regulator failures
They are only for dynamo's and not the alternator that Clanger has.bitza wrote:Get yourself a voltage regulators D V R 2 , solid state they are suitable for 6 or 12 volts and will fit in the old Lucas cut out box if you want to hide it.
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Re: Electronic rectifier/regulator failures
Fine with that my error.
- clanger9
- Posts: 1163
- Joined: Sat Jun 20, 2015 9:38 am
- Location: Chester, UK
Re: Electronic rectifier/regulator failures
Just to close this one out: I successfully repaired the faulty stator insulation and replaced the damaged electronic regulator with a new Wassell unit. All working fine again.
The stator insulation was cracked in various places.
Stator with new insulation. The coils were also re-wrapped with Kraken tape to keep everything together.
The stator insulation was cracked in various places.
Stator with new insulation. The coils were also re-wrapped with Kraken tape to keep everything together.
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1989 Moto Morini Dart 350
1993 Ducati 750SS
1993 Ducati 750SS
-
- Member
- Posts: 452
- Joined: Tue May 27, 2003 1:00 am
- Location: SHROPSHIRE UK
Re: Electronic rectifier/regulator failures
Great result not to expensive.