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Coolant in oil

Discussion in 'Ranger Nation' started by Mwaldo, Feb 13, 2020 at 9:34 AM.

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  1. Mwaldo

    Mwaldo Michael SXS Nation Regular

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    Ranger 700 6x6 2006

    Recent rebuild 2006 rzr 700, coolant in oil. No dripping from weep hole in water pump (new). 170 lbs compression - any ideas? Thanks
     
  2. RWB713

    RWB713 Richard Team SXS Nation

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    There's no such machine as a 2006 rzr 700, they started in 2007, and never have made a 700..... I assume you mean a ranger 700, but i would say you have a bad head gasket, cracked block, or cracked head. A leak down test of the cooling system would be a good place to start.
     
  3. Mwaldo

    Mwaldo Michael SXS Nation Regular

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    Ranger 700 6x6 2006

    I have done a cylinder leak down and get no air escape. If I pressurize the radiator I get coolant into the oil pan. But where from? Crack, base gasket?
    Thanks
     
  4. Mwaldo

    Mwaldo Michael SXS Nation Regular

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    Ranger 700 6x6 2006

    You are correct, this is an 07, 800 rzr
     
  5. Criscoboating

    Criscoboating Pat SXS Nation Rookie

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  6. Mwaldo

    Mwaldo Michael SXS Nation Regular

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    Ranger 700 6x6 2006

    Found the problem to be a leaking heat gasket. Does anyone use copper spray?
     
  7. Pede

    Pede SXS Nation Expert

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    Not with today's gaskets.
     
  8. Seastacker

    Seastacker Carl Moderator

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    Easy fix, but are you sure you ID'd the root cause? Was the head checked for flatness and cracks? Was the cyl assy new? If re-used, was it checked?
     
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  9. RWB713

    RWB713 Richard Team SXS Nation

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    If the head gasket were leaking, and you still had good compression and no leak down in the cylinder, but were pushing air form the cooling system to the crankcase...I'd be certain to check for cracks in the head and case while you have it apart. Do not use copper spray, change the head gasket and do a proper repair.
     
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