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Bench testing wiper motor

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  • Bench testing wiper motor

    I'm working on a 4 wire wiper motor for a 63 Cruiser. I've taken it apart, greased and re-assemble it. It runs when I hot wire it to a battery setting on the bench. How do I hook it up to check for the "park" spot that the wiper arm stops at each time I stop putting power too it? red, yellow, black and ? color wires on it.
    64 Champ long bed V8
    55/53 Studebaker President S/R
    53 Hudson Super Wasp Coupe

  • #2
    You've pretty well got to have it in the car to verify where the blades park.

    [img=left]http://www.alink.com/personal/tbredehoft/Bothcars.jpg[/img=left]
    Tom Bredehoft
    '53 Commander Coupe
    '60 Lark VI
    '05 Legacy Ltd Wagon
    All three Indiana built OD cars

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    • #3

      Both the dash switch AND the motor have to be grounded, in order for the park to work. At least, they do for a Hawk or Avanti.


      Bob Johnstone
      64 GT Hawk (K7)
      1970 Avanti (R3)

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      • #4
        Kdancy,

        I have been through this problem thoroughly, because I bought a wiper motor that came out of a '63 Lark. I then obtained a Lark wiper switch and found a website that detailed the wiring. You can do the same if you want to bench test the motor. Note that these 4-wire motors are completely different in their electrical circuits than the older 3-wire wiper motors.

        Pay particular attention to my second post in this thread:
        http://www.studebakerdriversclub.com...?TOPIC_ID=4814

        [img=left]http://rocketdillo.com/studebaker/misc/images/Avacar-hcsdc.gif[/img=left]DilloCrafter

        1955 1/2 Ton Pickup
        The Red-Headed Amazon
        Deep in the heart of Texas

        Paul Simpson
        "DilloCrafter"

        1955 1/2 Ton Pickup
        The Red-Headed Amazon
        Deep in the heart of Texas

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        • #5
          If you're testing it on the bench, you'll not have the drag of the blades to stop it in the park mode, but you'll be able to HEAR the motor momentarily cut out as it passes the park spot on the rotary switch contacts.

          Miscreant adrift in
          the BerStuda Triangle


          1957 Transtar 1/2ton
          1960 Larkvertible V8
          1958 Provincial wagon
          1953 Commander coupe

          No deceptive flags to prove I'm patriotic - no biblical BS to impress - just ME and Studebakers - as it should be.

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