Leaking OHV Cover?

Discussion in 'Lawn Mowing' started by rvsuper, Sep 21, 2003.

  1. rvsuper

    rvsuper Senior Member
    Posts: 930

    I just noticed this today. There is a mix of oil and gas leaking out of the OHV cover on my Kohler Command 12.5. Right next to the spark plug. I have a picture. If anyone could tell me what to do about this it would be appreciated.

    ohv 002.jpg
     
  2. rvsuper

    rvsuper Senior Member
    Posts: 930

    Nobody?:(
     
  3. lawnman_scott

    lawnman_scott LawnSite Fanatic
    Posts: 7,547

    could just be a bad valve cover gasket. cant tell from the picture.
     
  4. rvsuper

    rvsuper Senior Member
    Posts: 930

    I just noticed it today, I will run it tomorrow morning and see what it does. Is replacing the gasket on that easy to do? What else could be wrong?
     
  5. Darryl G

    Darryl G LawnSite Fanatic
    Posts: 8,128

    Are you sure it's coming from the OHV cover? I had a similar problem with a 17 Kawi and thought it was coming from there. It turned out that it was blowing out the oil/gas breather and dripping down to the OHV cover. Just a thought.
     
  6. ducky1

    ducky1 LawnSite Senior Member
    Posts: 252

    If it is a mix of oil and gas coming from a cover, you have a problem. Check for gas in oil, if there is none, you could have a leaky valve cover gasket which is not hard to change. When you have the cover off check the groove that the gasket goes in on the cover and make sure that it is not broke somewhere around the edge.
     
  7. Jman

    Jman LawnSite Member
    Posts: 217

    Reseal the valve cover and see if that takes care of it. There is no gasket, they use silicone sealant on that area.
     
  8. rvsuper

    rvsuper Senior Member
    Posts: 930

    What kind of silicon sealant? The stuff at hardware stores?
     
  9. BRIAN GALLO

    BRIAN GALLO LawnSite Senior Member
    Posts: 282

    Permatex Ultra Black works the best, I've found. It really holds up well to heat and oil.
     
  10. rvsuper

    rvsuper Senior Member
    Posts: 930

    What about Loctite instant gasket?
     

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