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Technical Model A brake switch

Discussion in 'Traditional Hot Rods' started by panhead_pete, Mar 23, 2022.

  1. panhead_pete
    Joined: Feb 22, 2006
    Posts: 3,718

    panhead_pete
    ALLIANCE MEMBER

    Getting my 30 Model A coupe ready for rego and have discovered I dont have brake lights. Its a pretty stock car. Im getting 12v to the switch (its a 12v car). Am I correct in ***uming I should have 12v on the 2nd terminal when the brake pedal is pushed?

    20220324_111240.jpg

    In the taillight housing is the upper bulb holder the brake light as lower is currently the running lights?

    Thanks as always fellas.
     
    Last edited: Mar 23, 2022
  2. set me on fire
    Joined: Nov 16, 2020
    Posts: 114

    set me on fire
    Member

    if it were mine id pull the swt and ck for continuity between terminals
    good luck
     
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  3. pprather
    Joined: Jan 10, 2007
    Posts: 8,981

    pprather
    Member

    Yes, two wires on switch should connect when pedal closes switch.
    You may have to dis***emble switch and clean the contacts.
     
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  4. panhead_pete
    Joined: Feb 22, 2006
    Posts: 3,718

    panhead_pete
    ALLIANCE MEMBER

    Cheers fellas. Anything special I need to know about removing the switch?
     
  5. Budget36
    Joined: Nov 29, 2014
    Posts: 15,321

    Budget36
    Member

    Disconnect the battery so you don’t short the hot wire.
     
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  6. Mr48chev
    Joined: Dec 28, 2007
    Posts: 36,001

    Mr48chev
    ALLIANCE MEMBER

    I'm still not sure how it hooks up on a Model A but this video may well be worth spending about three minutes of your time watching. 1929 Model A Ford Brake Light Switch Repair - YouTube
    For the rest of us it is an interesting tid bit of information on a very simple switch.
     
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  7. panhead_pete
    Joined: Feb 22, 2006
    Posts: 3,718

    panhead_pete
    ALLIANCE MEMBER

    Ah guessing its not meant to look like this :)

    Looks like I will need to try and source a new switch.
    20220324_143604.jpg
     
  8. rusty valley
    Joined: Oct 25, 2014
    Posts: 4,338

    rusty valley
    Member

    That one don't look so hot...well, depending on how you think about it...maybe too hot ! anyway, the originals are better than the repops if you can find one
     
    panhead_pete likes this.
  9. Pete, non hydraulic m/cycle rear brake switches are a great candidate if ya don’t care about original, robust design for the outdoors
     
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  10. sloppy jalopies
    Joined: Jun 29, 2015
    Posts: 5,256

    sloppy jalopies
    Member

    some of the local guys use harley brake light switches... they hold up better than the parts store repops...
     
  11. goldmountain
    Joined: Jun 12, 2016
    Posts: 4,858

    goldmountain

    Should be all kinds of motorcycle switches in Japan.
     
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  12. woodiewagon46
    Joined: Mar 14, 2013
    Posts: 2,528

    woodiewagon46
    Member
    from New York

    The Model A brake light switch is as simple as it gets, all you are doing is completing the circuit to the tail light. It's easy to repair and most off shore switches are junk. Bert's Model A Center, 800-321-1931 does have U.S.A. made switches PN A-13480-BU for $44.50.
     
  13. pprather
    Joined: Jan 10, 2007
    Posts: 8,981

    pprather
    Member

  14. stubbsrodandcustom
    Joined: Dec 28, 2010
    Posts: 2,598

    stubbsrodandcustom
    ALLIANCE MEMBER
    from Spring tx

    I agree the Berts one made here in the US is better for sure.
     
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  15. panhead_pete
    Joined: Feb 22, 2006
    Posts: 3,718

    panhead_pete
    ALLIANCE MEMBER

    Thanks all. Have searched Japan for one without luck. If I get stuck will go with a moto one but am hoping to go with an original style switch in keeping with the how original the car is. Good to learn the more expensive ones are the way to go.
     
  16. rusty valley
    Joined: Oct 25, 2014
    Posts: 4,338

    rusty valley
    Member

    How about get a piece of br*** and make a new part to replace the one thats broke?
     
  17. Use some screws, washers and pieces of a plastic milk jug to fix it. All it needs to do is make contact at the studs and not the housing.
     
    pprather and Barrelnose pickup like this.

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