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56 Commander Defrost Motor ??

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  • Cool/Heat: 56 Commander Defrost Motor ??

    Is this motor 1 speed or 2 speed? If it is 1 speed can it be made into a 2 speed? I hooked it up and it seems a little fast. It made a little noise so I drilled a 1/8 hole in the end of the motor and put a few drops of oil in and it quietened right down.
    Last edited by Carl Purdy; 03-09-2011, 03:46 PM.

  • #2
    On the first switch position, power is routed through a resistor to get slow speed. Originally the resistor was located on the fan switch. A later update relocated the resistor to the engine side of the firewall.
    Restorations by Skip Towne

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    • #3
      Thanks Dwain. On my heater switch there is 2 coils. 1 is broke off. I need to get a new one. I didn't know if one was for the heater and one for the defroster. Hope to find one at South Bend in May.

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      • #4
        The original switch (with two resistors) is part #1540151. The new switch is part of kit #1547064.
        Restorations by Skip Towne

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        • #5
          Thanks Dwain. Have it wrote down on my want list.

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