Runs bad under a load

Discussion in 'Mechanic and Repair' started by masternites, May 1, 2007.

  1. masternites

    masternites LawnSite Member
    Posts: 1

    Hello all :waving:
    I have a cub with a 22hp kohler and 60" deck. It ran and stoped ran and stoped so I redid the fuel lines from tank to pump. Fixed that. Now a tube under the air filter has a fuel and oil mix coming out and chocking down the motor while under a load mowing or a hard pull. Blows lots of smoke out the muffler fouls the plugs. Runs ok when not under a load.. Blow-by I'm guessing??:confused: What is the fix?? Please
    Thanks John
  2. LongviewLandscapeSupply

    LongviewLandscapeSupply LawnSite Member
    from Wa
    Posts: 10

    sounds like a blown head gasket... thats what our dingos are like when they blow the motors... kohler motors are junk.
  3. Restrorob

    Restrorob LawnSite Fanatic
    Posts: 11,023

    What's your high speed RPM set at ?

    Is the oil level over-full ?

    Does the oil smell like fuel ?

    What weight oil are you running ?

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