What happened to my paint??

Discussion in '1947-1954' started by Bilbo, Dec 1, 2014.

  1. Zig

    Zig Member

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    I admire your bravery, Bill!

    6 volt GMC gauges with a 12 volt supply.
    I got some kind of reducer(?) and put that on the incoming side. (I’ll check to make sure I picked the right side and get back to you.)
    Original was positive ground, of course, so there’s that added ? In the mix.
    Maybe I need to start a new thread instead of high jacking this one. #rolleyes#
     
  2. Zig

    Zig Member

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    Thanks, Nate. I’ll be on the lookout.
    It would be great if the original was still willing.
    I drive my truck a lot, and once I get the door glass in it, I’ll drive it just as much in the winter, as long as the heater works- especially the defroster.
     
  3. vwnate1

    vwnate1 Member

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    Yes, the original motors are pretty stout .

    It's a seriously fiddly job to open them up and replace the brushes but IMO well worth the effort .

    Grainger sells a nifty 12 drop in replacement fan motor, no I don't remember the P/N although there's an unused one under the piles 'O crap on my dining room table .

    My old Mercedes HVAC motors always need brushes, Ma Benx used to get $1,200.00 for them #eek#, I bought one aftermarket one and didn't like it, took it back out and gave it to a buddy up near the Canadian Border who lives off the grid, he loves having robust heat in his old 240D again, I taught my self how to take the original BOSCH motors apart, clean out the accumulated dust and crud, replace the soldered in brushes ($10/ pair) , re lube and so on, I have two waiting to be installed right now , always things to do .

    FWIW, the electric motors and fuel gauges care not a whit about polarity, just the VOLTAGE ~ DO NOT use one of those ceramic dropping resistors ! .

    Go to 5th Avenue Auto Parts and buy the proper one from Randy or cobble one up using Radio Shack voltage regulators .
     

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