John Deere 335 Tractor

Discussion in 'Mechanic and Repair' started by Vernon L, Jul 10, 2013.

  1. Restrorob

    Restrorob LawnSite Fanatic
    Messages: 11,029

    Who meee ???

    I know no-ting...... :waving:
  2. Vernon L

    Vernon L LawnSite Member
    Messages: 6

    Gentlemen, Rob, Dutch 1 and piston slapper,

    Thank you for all of your expertise. This AM I did a volume test on the fuel pump and it is pumping out 9 ounces in 15 seconds, 3 times better that the manual suggests.

    However, I have new problems. The engine surges and I have to use the choke to keep it running and I am getting an occasional backfire. I assume that is from the excess use of the choke. As suggested, I sprayed all around the carb and heads. No improvement in the running of the engine. I checked all of the hoses (air and fuel lines) and they are in excellent condition.

    Also, this AM I could not get the engine to run with the air filter installed. After removing the filter, which is new I could get the engine running. The engine stalls immediately if you engage the mower.

    Currently, I am at a loss as to what to do next. But, I am leaving tomorrow morning on a 2 week vacation. Maybe, by the time I get back the tractor will have repaired itself. LOL

    Any further recommendations are gratefully accepted.

    Thanks again,

  3. dutch1

    dutch1 LawnSite Silver Member
    from Jayhawk
    Messages: 2,247

    Your problem certainly appears to be fuel related but if you feel assured that everything fuel related is up to snuff, I'd consider a leakdown and compression test.
  4. Vernon L

    Vernon L LawnSite Member
    Messages: 6

    I have done a copression test and it is within specifications, but have not done a leakdown test.

  5. piston slapper

    piston slapper LawnSite Platinum Member
    Messages: 4,324

    Readjust the governor....
    Replace the intake gaskets....
    Ive seen broken...sucked in....intake gaskets that leak so bad that spraying around them doesnt seem to help...

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