Author Topic: M33 Electronic Regulator  (Read 204 times)

0 Members and 1 Guest are viewing this topic.

MALL33

  • Star
  • *
  • Posts: 4
    • View Profile
M33 Electronic Regulator
« on: 12 January, 2018, 19:21:09 »
Hello

I am fitting a Wassell WW10221N electronic regulator (negative earth) to replace the old regulator on my 1948 M33. I have managed connecting to the wiring harnes ok, But I am struggling to undertand the instructions for changing the wiring within the dynamo. Please can anyone advise? I can post Wassell wiring instruction and dynamo pics if needed.

Thank you

AWJDThumper

  • Empire Star
  • *****
  • Posts: 317
    • View Profile
Re: M33 Electronic Regulator
« Reply #1 on: 12 January, 2018, 22:35:01 »
Please post the wiring information :)

MALL33

  • Star
  • *
  • Posts: 4
    • View Profile
Re: M33 Electronic Regulator
« Reply #2 on: 13 January, 2018, 09:22:03 »
Hi, Thanks for your reply. Please see attached, its the Wassell wiring diagram that pzzles me.

AWJDThumper

  • Empire Star
  • *****
  • Posts: 317
    • View Profile
Re: M33 Electronic Regulator
« Reply #3 on: 13 January, 2018, 11:34:29 »
At face value, your dynamo appears to be wired up as per the revised Wassell wiring diagram which I believe is how they are normally wired up. I assume your problem is that the first wiring diagram doesn't make sense?

MALL33

  • Star
  • *
  • Posts: 4
    • View Profile
Re: M33 Electronic Regulator
« Reply #4 on: 13 January, 2018, 12:39:33 »
I tested the dynamo as a motor and it ran ok. When I run the bike I dont think its charging, as the battery became fully discharged. Thats why I thought the dynamo would need rewiring as the Wassell iinstrutions suggested.

I have rebuilt the bike but never saw it running before. I am sure the dynamo is original to the the bike along with the old regulator (which is wrecked)

Thanks for your time

JulianS

  • Empire Star
  • *****
  • Posts: 698
  • A10
    • View Profile
Re: M33 Electronic Regulator
« Reply #5 on: 13 January, 2018, 13:28:19 »
The photo shows the commutator looking very dirty  and the brushes worn.

Unless you have cleaned commutator and replaced brushes the dynamo will not give its best.


AWJDThumper

  • Empire Star
  • *****
  • Posts: 317
    • View Profile
Re: M33 Electronic Regulator
« Reply #6 on: 13 January, 2018, 13:53:30 »
I would also check the field coil is not open circuit by measuring for finite resistance between the two wires emerging from the inside of the dynamo.

STAR TWIN

  • Royal Star
  • ***
  • Posts: 145
  • A7 A10 B31 WDB40
    • View Profile
    • Strange Sheep
Re: M33 Electronic Regulator
« Reply #7 on: 13 January, 2018, 14:16:53 »
Is your dynamo polarity correct? Try flashing it.

MALL33

  • Star
  • *
  • Posts: 4
    • View Profile
Re: M33 Electronic Regulator
« Reply #8 on: 13 January, 2018, 18:11:17 »
Thanks for your advice. I will start with new brushes, then do tests.