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10hp B&S blowing oil from crankcase breather

Discussion in 'The DIY Room' started by basod, Nov 4, 2013.

  1. basod

    basod

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    Hey Fellas - finally found the new forum.
    Anyways tried to get the old Snapper running this morning to suck up the leaves and it ran for ~2mins sputtered and quit.
    After pulling all the safety cutouts getting spark etc. decided to pull the filter - fired right up ran ~1min and turned my head to see oil sputtering out the crankcase vent, fortunately the thing didn't burn down in the driveway:emb:

    I plan on pulling the carb and checking for stuck float, the oil is at normal level now - not sure if a I'm getting gas in there or not.

    Any other ideas?
     
  2. basod

    basod

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    well the oil drained out like thin gas.
    Pulled bowl checked float reassembled refilled oil and she's purring like a kitten.
    feel like Forest Gump - my big azz on that little Snapper
     
    milleo likes this.
  3. Well Seasoned

    Well Seasoned Administrator

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    Hmmm, not sure. Others will certainly jump in. Ive been smelling burned oil on my splitter lately.
     
  4. MasterMech

    MasterMech The Mechanical Moderator

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    You should be able to smell gas in the oil if that's what happened. Sounds like you're good to go now however!
     
  5. Pallet Pete

    Pallet Pete Moderator

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    Be sure to check it next time you run it too. Last time I had that happen the motor was toast.
     
  6. basod

    basod

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    I got the mower for free from a coworker who rarely if ever maintains his equipment. The filter was plugged from the oil/gas soaking it from the clean side.
    It ran like a top for the short period it took to vacuum up the leaves, I'll see how it is when I crank it up tomorrow.
    FWIW the bag attachment has a date code of 1992. The "drive wheel" sort-of clutch plate is worn and I debate about buying a new belt as opposed to just slipping back into place when it jumps off everytime I shut it down.
    Just another free piece of junk that does what it is intended to do - suck up some leaves and become a future powerplant for some odd ball project
     
  7. chris

    chris

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    Yep a stuck float will empty the gas tank right into the oil sump. Seen some cases so bad unit was hydro locked.