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switching from + ground to - knowlage needed

Discussion in 'The Hokey Ass Message Board' started by chopo, Jul 7, 2012.

  1. chopo
    Joined: Feb 20, 2006
    Posts: 1,265

    chopo
    Member

    is there anything i need to do other than switch the battery terminals on my pos ground 6 v system. like coil feeds etc..... seeing a red wire bolted to the frame just looks wrong to me, thanks for all the advice.
     
  2. what car? and what gauges are electric?
     
  3. chopo
    Joined: Feb 20, 2006
    Posts: 1,265

    chopo
    Member

    no gauges to worry about 39 stude
     
  4. JohnEvans
    Joined: Apr 13, 2008
    Posts: 4,883

    JohnEvans
    Member
    from Phoenix AZ

    Reverse wires on the coil ,repolarize the generator possibly need to replace the voltage regulator ,reverse connections on amp meter. You have a electric fuel gauge ? More to it than just swapping battery connections. If red offends you buy a braided style ground strap.
     

  5. Mike51Merc
    Joined: Dec 5, 2008
    Posts: 3,856

    Mike51Merc
    Member

    Starter solenoid may need replacing.
     
  6. tommy
    Joined: Mar 3, 2001
    Posts: 14,757

    tommy
    Member Emeritus

    The only reason that I can think of to change the polarity on a stock 6V car is if you are changing it to 12 Volts.

    If your wiring is in good shape and your connections are clean, why do you want to change polarity? It has worked fine for all these years. Changing polarity is not an upgrade. To me it's a waste of time for a stock 6V system. If you really want an upgrade then and only then would I consider a 12V neg ground system. There is no advantage to reversing the polarity on a stock 6V system.
     
  7. chopo
    Joined: Feb 20, 2006
    Posts: 1,265

    chopo
    Member


    right Tommy old wires are way bad. if i gotta do a rewire why not just go to - ground
     
  8. tommy
    Joined: Mar 3, 2001
    Posts: 14,757

    tommy
    Member Emeritus

    Why? What is the advantage of switching? Replace the wires as needed but changing a 6V pos ground to 6V neg ground is a waste of time for no reason except it's not what you are used to seeing. A pos ground system has worked reasonably well for 60 years and will continue to work well if maintained well. JMO
     
  9. Dan Timberlake
    Joined: Apr 28, 2010
    Posts: 1,303

    Dan Timberlake
    Member

    different radio, or some extra work needed isolate the original radio mounting
     
  10. flyin54
    Joined: May 17, 2011
    Posts: 48

    flyin54
    Member
    from modesto ca

    Don't forget the starter, it would turn backwards!
     
  11. Ramblur
    Joined: Jun 15, 2005
    Posts: 2,101

    Ramblur
    Member

    Don't believe theres much thats polarity sensitive. As others have noted reverse leads on coil,amp gauge,and reflash the generator and you should be good.



    Oh,'some' radios back in the 30's are polarity sensitive ,but you'll know right away if their talking backwards...;)
     
  12. No and no
     
  13. chopo
    Joined: Feb 20, 2006
    Posts: 1,265

    chopo
    Member

    tommy has the wisdom. Im going to follow his lead.
     
  14. tommy
    Joined: Mar 3, 2001
    Posts: 14,757

    tommy
    Member Emeritus

    Wow thank you.

    At least this way the manuals and any mechanics that work on it in the future will understand what is going on.
     

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