Diagnosing Engine Difficulty - Gasoline Tractors
The following suggestions are listed for your assistance. You can make simple adjustments on your tractor that
will improve its operation and save you the time and expense of hiring someone to do it for you.
Always make one adjustment at a time, and if the adjustment made does not improve the condition, return to the
original setting before proceeding to the next adjustment.
Engine Fails to Start or Runs Unevenly
- Fuel valve is shut off.
- Incorrect fuel in tank.
- Float valve sticking.
- Fuel tank empty.
- Clogged fuel filter or fuel lines.
- Dirty or clogged air cleaner.
- Leaking or loose manifold.
- Engine flooded.
- Broken wires from distributor to engine.
- Wires not in proper position.
- Switch not turned on or defective.
- Spark plugs wet, dirty or broken.
- Distributor weak, or out of time.
- Spark plugs points pitted, dirty or improperly spaced.
- Low water level in cooling system.
- Radiator clogged.
- Fan belt slipping.
- Collapsed radiator hose.
- Thermostat stuck.
- Tractor overloaded.
- Improperly timed ignition.
- Fuel mixture too lean.
- Weak spark.
- Diluted lubricating oil.
- Pulling heavy load at reduced engine RPM.
- Water pump impeller vanes broken.
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It Can't Be Done! - A Tractor Story - by Neil Campbell. I'll never forget the time back when I was a boy baling hay on our Farm in Big Rapid, Michigan. The most memorable event that took place was a trip up the steepest incline on the farm pulling an old New-Idea baler with a pony-motor for power and a haywagon. I had just talked my Dad into buying an old John Deere B with 6-speeds ahead and I was real proud of it, except it was a little smaller than the Case tractor that we normally
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IHC McCormick Deering WD-40. WDC-516. Engine also is serial number WDC516. Vertical injector head. On rubber. Round spoke rims. Starts and runs nice.
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