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Thread: Leaking dash heat circulation pump

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  1. #1
    Join Date
    May 2006
    Location
    LaBelle
    Posts
    474

    Default Leaking dash heat circulation pump

    My Prevost dash heat circulation pump is leaking and I have replacement parts, seals, impeller, gaskets, etc. I ordered from Prevost. I have removed the pump and cannot disassemable it. Can anyone tell me how to remove the impeller to get at the seals? Prevost has an upgrade in a seamless motor/pump setup for $800 but I opted to repair mine for $100 in new parts. Now I am stumped. Any help would be appreciated. This is the pump located on the ceiling in the front center bay

  2. #2
    Join Date
    Mar 2013
    Location
    Chicago
    Posts
    3,988

    Default

    pictures please. Have U even gt the housing apart or no.

  3. #3
    Join Date
    May 2006
    Location
    LaBelle
    Posts
    474

    Default

    Photos of pump
    Attached Images Attached Images

  4. #4
    Join Date
    Mar 2013
    Location
    Chicago
    Posts
    3,988

    Default

    Have U attempted to seporate that next flange that couples the pump housing to the motor housing?

    Im guessin the impeller is what U R dealing with now.

    Hate to sound fussy but how bout another photo.

    The snail the impeller take a photo of that. Is it held on the shaft with a small nut? Is the impeller aluminum or metal?

    Im pretty confident I know U well enough to say if U cant figure it out its a bit of a jig saw puzzle hu?

    Bet U R happy that big black Mack aint this fussy.
    Last edited by Joe Camper; 05-26-2013 at 08:15 PM.

  5. #5
    Join Date
    Nov 2006
    Location
    Wilsonville, OR 97070
    Posts
    852

    Default

    Call these people
    P M Pump CO

    Pm Pump Company
    5032 Stanley Farm Road
    Salem, VA 24153-7948 map

  6. #6
    Join Date
    May 2006
    Location
    LaBelle
    Posts
    474

    Default

    Will send additional photos tomorrow. I cannot separate the brass pump section from the motor part because the impeller is holding it together. I have tried prying between the brass pump and the motor but nothing moves. I believe once the impeller is released it will all separate so I can replace the seals. It seems to be pressed on instead of a nut holding it on the shaft.The Black Bull Dog is simple compared to the bus.

    I will contact the pump company on Tuesday. Thanks for the help.

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