Kohler command 20 hp fouling plug low hours

Discussion in 'Mechanic and Repair' started by mcambrose, Jan 21, 2008.

  1. mcambrose

    mcambrose LawnSite Senior Member
    Posts: 510

    I have a 2003 walker mower with 267 actual hours. It is already burning a lot of oil on the front cylinder. I pulled the plug today and it was covered with carbon. The back plug looks great. I just rebuilt one of my other Kohler engines with same problem, but it had almost 900 hours. The 900 hour engine had a small oil leak that covered the fins of front head and clogged them up with dirt. The heat made the oil ring fail. I looked and the front fins on the 267 hr motor were clean. Any other idea why the engine might have started burning oil so soon. I am assuming that the oil rings have failed. just like the other engine.
     
  2. Landrus2

    Landrus2 LawnSite Platinum Member
    Posts: 4,811

    Some thing is defiantly wrong 900 hours is very little
    But 360 is out of the question don’t you have a one year warranty:drinkup:
     
  3. lucforce

    lucforce LawnSite Member
    Posts: 223

    BLOWN head gasket.
     
  4. Restrorob

    Restrorob LawnSite Fanatic
    Posts: 11,024

    Sounds like the classic blown head gasket at the oil return port, A cylinder leak-down test will verify this.
     
  5. shopmanual

    shopmanual LawnSite Member
    from Indiana
    Posts: 13

    Makes sense to me. It seems like a lot of the newer v-twins burn a decent amount of oil. My friend had a Briggs Intek that would go through tons of oil.
     
  6. sawman65

    sawman65 LawnSite Senior Member
    Posts: 751

    blown head gasket kohler had problems with this.you cant hear it but its there there is a kit to fix this. and do them both the other is rite behind the first one. the kit has both the gaskets you need to fix it also.
     

Share This Page