Vintage Voltage Regulator MM

Discussion in 'Vintage (thru 365 GTC4)' started by enio45, Sep 9, 2017.

  1. enio45

    enio45 Formula Junior
    Rossa Subscribed

    May 16, 2004
    Gilbert, AZ
    Full Name:
    Working thru my Ellena project - the MM voltage regulator does not seem to be responding.

    Looks like possible the components on the botton (Resistors) might be burnt....not sure - maybe they are capacitors?? Anyhow i need a repair source for this VR.

    Attached a few pics - any advise what to do, where to go, find a new one, do a conversion.....need some thoughts and guidance pls.

    Honestly it looks simple enough....
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  2. MiuraP400

    MiuraP400 Formula Junior
    Silver Subscribed

    Feb 3, 2008
    Full Name:
    British cars from the 50's and early 60's used very similar regulators. I would take a look at the repair manuals for a 50's Bentley R type and an early 60's 3.8 Jaguar E type. I believe both manuals have procedures in them for trouble shooting them. Years ago I found the Bentley manual on line. Old Rolls Royce and Bentley manuals tend to have very detailed manuals with a lot more info in them than most manuals. I would also take a look at some British car forums for other cars including Triumph TR4 and MGA's, these cars also have mechanical regulators and the owners sometimes write very detailed troubleshooting and repair guides.
  3. turbo-joe

    turbo-joe F1 Rookie

    Apr 6, 2008
    southwest germany
    Full Name:
    romano schwabel
    you may look at a bosch dealer, the old bosch regulators looks equal
  4. Motob

    Motob Formula 3
    Professional Ferrari Technician

    Nov 11, 2003
    Berkeley, CA
    Full Name:
    Brian Brown
    Those are resistors on the bottom of the voltage regulator. Tim at Select Electrics can test and repair the regulator:
    If it is unrepairable, then you should be able to find a good used or new replacement. The IR19B is fairly common, a vendor in Padova had NOS units in the box.
    They will cost you, but we are talking about a 1/2 million dollar car.
  5. prance

    prance Formula Junior

    May 4, 2005
    Agoura Hills
    Full Name:
    You can call Norbert at GT Classics in Long Beach, he may know someone who can re-build it without having to put some non original part in your Ferrari.
  6. enio45

    enio45 Formula Junior
    Rossa Subscribed

    May 16, 2004
    Gilbert, AZ
    Full Name:
    Thanks for the responses....i think i have enough info to resolve this
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