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Trailblazer Oil Leak Need Some Help

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  • Trailblazer Oil Leak Need Some Help

    2004 Trailblazer 302 with kohler engine. I have been using it for power the last few nights it's -26F in Southwest Montana tonight The power goes out when it gets this cold or at least his has the last few nights. I notice I am getting some oil leaking not much (1 Table spoon) from the right side head area looks like a fuel pump. I took some pictures. Whats going on this after about a 4 hour run. Is this common? is somthing loose? any tips would be helpful The oil level is at the top of the full mark. Does it puke it out if it is at the top? I have a other engine that does that. Help!
    Attached Files
    Mountain Metal
    Dynasty 200 DX
    Coolmate 1
    Miller Trailblazer 302 W/ Kohler
    Miller Suitcase 12VS Wire feeder
    Weldcraft 26 TIG Torch
    Miller 210
    Spoolmate 3035
    Thermal Dynamics 51 Plasma
    Victor O/A
    Jet 7x12 L Cooled Band Saw
    Delta Drill Press
    Dewalt Chop

  • #2
    iF THE FUEL PUMP USES CRANKCASE VACUUM TO ACTUATE THE PUMP ,IT COUBE BE A LEAKY "O" ring

    Comment


    • #3
      Pull the top plastic air filter cover off.

      Under the suport for the air cleaner itself you will feel the carb and 2 gaps on either side of the carb.

      Fill these gaps with a couple wads of pink insulation.

      This will stop cold air from freezing the vent lines.

      What happens is high pressure hot air from the muffler and gen fan escapes the sides of the engine, and frozen low pressure cold air gets sucked into the carb area.

      This trick stops that from happening.

      Comment


      • #4
        I will give that a try. Thanks cruizer

        I am not under standing what causes this to happen?

        Are the vent lines like a crank case vent, they get clogged and oil comes out of the mech fuel pump seal?
        Mountain Metal
        Dynasty 200 DX
        Coolmate 1
        Miller Trailblazer 302 W/ Kohler
        Miller Suitcase 12VS Wire feeder
        Weldcraft 26 TIG Torch
        Miller 210
        Spoolmate 3035
        Thermal Dynamics 51 Plasma
        Victor O/A
        Jet 7x12 L Cooled Band Saw
        Delta Drill Press
        Dewalt Chop

        Comment


        • #5
          Sorta kinda, usually happens more with the guys running dinosaur oil. A lot of moisture in the oil causes the crankcase vent lines to ice up and spew oil into the carb and makes its way down the intake and into fuel vac lines, though the fuel vents also tend to ice up as well causing back pressure, and vac fuel pump problems

          Never the less blocking in the sides of the carb does wonders.
          Last edited by cruizer; 12-15-2008, 04:21 PM.

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