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12 Volt Overdrive Solenoid Solution

Discussion in 'The Hokey Ass Message Board' started by Crookshanks, Jul 29, 2016.

  1. Crookshanks
    Joined: Dec 16, 2010
    Posts: 279

    Crookshanks
    Member

    So we've got three Chryslers with overdrives behind stock flatheads - two eights and a six. The one we converted to 12 volt seems to be frying solenoids. Anybody know a solid testing method and are there any 12 volt options for these old ODs??


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  2. squirrel
    Joined: Sep 23, 2004
    Posts: 42,908

    squirrel
    Member

    what old OD is it? The M-6?
     
  3. Crookshanks
    Joined: Dec 16, 2010
    Posts: 279

    Crookshanks
    Member

    Squirrel, It's stock '39 Imperial OD. Gotta get under there and scrape some grime and see.

    [​IMG]


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    Last edited: Jul 29, 2016
  4. Cosmo49
    Joined: Jan 15, 2007
    Posts: 1,097

    Cosmo49
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    What does "...seems to be frying solenoids" mean? I pushed 12V through a 6V solenoid for 12 years, no problems, I will follow to learn but as yet have no recommendations for you.
     
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  5. squirrel
    Joined: Sep 23, 2004
    Posts: 42,908

    squirrel
    Member

    If it's a Borg Warner, there are 12v solenoids for later ones, but they also had different design solenoids for different cars...I think the early ones usually had longer pins or something.

    Posting a picture of the solenoid you have, would be a good start to finding a solution, since most folks who have messed with BW ods probably have not messed with a 39 imperial.
     
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  6. Crookshanks
    Joined: Dec 16, 2010
    Posts: 279

    Crookshanks
    Member

    We've pushed 12 volts through it for 20 years and now the solenoid is fried - as in not working and making a connection when tested. I have deduced that 12 volts is the problem as our 6 volt overdrives had given no problem. However, this may or may not be the case.


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  7. Crookshanks
    Joined: Dec 16, 2010
    Posts: 279

    Crookshanks
    Member

    It is an Auto-Lite solenoid like the photo represents.
    [​IMG]


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  8. Cosmo49
    Joined: Jan 15, 2007
    Posts: 1,097

    Cosmo49
    Member

    What's your on center bolt spacing and solenoid pin length? I have a few from the Chevy world.
     
  9. Crookshanks
    Joined: Dec 16, 2010
    Posts: 279

    Crookshanks
    Member

    Cosmo, I will measure and let you know this weekend. Thanks a ton.


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  10. squirrel
    Joined: Sep 23, 2004
    Posts: 42,908

    squirrel
    Member

    yup, that would be helpful...the picture you linked above (which I already found on my search for more info) doesn't show the important parts.
     

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