Waterpump on a CAT

Discussion in 'Trucks [ Eighteen Wheelers ]' started by bob1234, Jan 23, 2012.

  1. bob1234

    bob1234 Light Load Member

    71
    1
    Nov 10, 2010
    brantford, ont
    0
    I have a 06 mxs and noticed when worming the truck up i get some sippage from the hole in my water pump when the engine worms up no more sippage should i be concerned or is.this normal
     
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  3. mgfg

    mgfg Road Train Member

    1,753
    626
    Mar 29, 2010
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    Typical CAT water pump>the impellor shaft seal is telling you it's time!
     
  4. Superhauler

    Superhauler TEACHER OF MEN

    12,209
    100,733
    Jan 30, 2010
    keep stroking.
    0
    i've had some seep forever and some fail in a day. its a sign to get ready to replace it.
     
  5. Giggles the Original

    Giggles the Original Road Train Member

    dont ya know cats HATE water...???
     
  6. KaptainKenworth

    KaptainKenworth Bobtail Member

    33
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    Jan 19, 2012
    Alberta Canada
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    It normal to see residue around the hole ( its a breather).. however it fluid starts coming out its toast.
     
  7. Shade Tree

    Shade Tree Light Load Member

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    May 15, 2011
    Galloway Ohio
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    The other thing to not do, is plug that hole. It will push coolant into the crankcase. CAT used to have a sponge in the weepholes to keep dirt out and operators thought if I just plug it it won't leak. NOT good.
     
  8. bob1234

    bob1234 Light Load Member

    71
    1
    Nov 10, 2010
    brantford, ont
    0
    It's like a streak marks around it no puddles on the ground
     
  9. cowcatcher

    cowcatcher Light Load Member

    A CAT waterpump is designed to leak a little. As long as it don't hit the ground your good.
     
  10. bob1234

    bob1234 Light Load Member

    71
    1
    Nov 10, 2010
    brantford, ont
    0
    good to know thanks
     
  11. 07-379Pete

    07-379Pete Crusty Commando-Pete

    2,549
    2,347
    Oct 3, 2008
    Campbellsville, Ky
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    Its a cold water leak and when it warms up it gets sealed off. Mine leaked like that for a year before the 5 year 500000 mile warranty ran out, but it would never leak while at a Cat shop. A leak is a leak and if they would have seen it leak I could have gotten a new pump.
    When my water to oil cooler dump water into the trans I removed the cooler and pluged the lines and when the radiator was filled and the truck started the pump leaked like a sieve.
     
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