john deere engine help

Discussion in 'Mechanic and Repair' started by chrisstory, Sep 22, 2013.

  1. herler

    herler LawnSite Fanatic
    Posts: 5,144

    Fuel lines and filter.
     
  2. rreyn1812

    rreyn1812 LawnSite Senior Member
    Posts: 444

    Have you cleaned the carb?
     
  3. chrisstory

    chrisstory LawnSite Member
    Posts: 21

    This is what I have done....coils, fuel filter, fuel lines, valve clearance, plugs, checkded compression, intake gaskets. It is now doing it when hot and under load. It seems to be able to be saved if I disengage the pto.........crap I'm at a complete loss with this one
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  4. BigFish

    BigFish LawnSite Gold Member
    Posts: 3,064

    Have you checked the anti-afterfire solenoid?? Sounds like it could be acting up. Unscrew it and clean out around the plunger/coil cavity. Try wedging a bit of toothpick between the plunger and body to keep the plunger retracted.
    If that solves it then either clip the plunger off or replace the sol.
     
  5. herler

    herler LawnSite Fanatic
    Posts: 5,144

    Do this, once it's hot with the PTO Off give it some full forward and reverse stick, see if it bogs down at all.

    If it doesn't, I might start looking in the direction of blade belt / pulleys or something binding down below.
    Still doesn't answer why it runs fine cold, but at least it might narrow it down towards the PTO-to-blades area.

    Could it be a belt slipped around a guide wrong?
     

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