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New Kawasaki 19HP: ran with gas in oil. Permanent damage?

Discussion in 'Mechanic and Repair' started by steveprins, Jul 15, 2007.

  1. steveprins

    steveprins LawnSite Member
    Messages: 1

    New Hustler Mini Z just bought, and I'm wondering how much I should demand from dealer...
    - 3 hours logged on engine and it just stopped: carb needle valve apparently stuck resulting in no start, gas smell coming out exhaust. after a couple cranks, engine appeared to seize when trying to start.
    - Dealer came out to house next day and mower started. I logged a couple more hours on mower and it happened again (engine just killed), this time I noticed gas *pouring* out exhaust when attempting to start and also gas in oil. Most likely gas was in oil when I was mowing that day for two hours.
    - Dealer has mower and will "fix it".

    QUESTION: Has permanent damage possibly been done?
    - engine appeared to seize, perhaps scoring cylinder walls (vapor lock?).
    - Engine ran for a couple hours, undoubtedly with gas in oil.
    - Should dealer just check compression? How will I know it's OK?

  2. khouse

    khouse LawnSite Bronze Member
    Messages: 1,465

    I think your seizing issue was no more than fuel in the cylinder. Since theoretically a liquid will not compress you probably just had a hydraulic lock situation. I don't think you'll have any issues on longevity after the carb is repaired.
  3. bigbug

    bigbug LawnSite Member
    Messages: 5


    The EXACT same thing is happening to me. I bought a 2006 Hustler Mini Z with a 19HP Kawasaki in June The engine is flooding and running out the exhaust. I have had it to the dealer and after a new fuel pump and float kit (needle and seat and maybe float) it is doing it again. I am really frustrated. The dealer is looking at putting a new carb. on it. Keep me posted. This is really bothering me. I have had to change the oil twice now. After I got it I noticed this and then it happened to me two more times. happned today after all the work on it. AAAHHH!!!! the dealer has been good to work with but I sure wanted less trouble from a new mower.
  4. bigbug

    bigbug LawnSite Member
    Messages: 5

    Did the dealer ever tell you what was wrong with the engine/carb.?

  5. fixer67

    fixer67 LawnSite Silver Member
    Messages: 2,098

    Yes, Permanent damage was done but how much is unknown. I have seen engines that had this happen and never run again and I have seen this happen to engines that ran for years afterwards. There is no way of really telling without a tear down. You can do leak down tests and such to get some idea of the level of damage but a tear down is the only sure fire way of knowing. Only time will tell.
  6. bigbug

    bigbug LawnSite Member
    Messages: 5

    Hello All:

    The dealer got Kawasaki to replace the Carb. on my unit and it has been fine ever since. I am thankful my dealer stuck to it and got it fixed. My dealer is Caney Valley Equipment near Dewey, OK. Thanks to Tom Culver.

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