Ford 4000SU Ignition Timing Check

Steve in IL

Member
OK... There has got to be a trick to checking/setting the ignition timing on this tractor. That little peep hole down below the starter is so small. Perhaps I need a brighter timing light? I can barely see
anything! I even tried making a video with my phone, and slowing it down & zooming in. How do you experts time your tractors?
 
Use white paint or Wite-out to mark the degrees you want. Leave the engine off and with that white mark where you want the timing set, slowly turn the distributor until the timing light flashes. Turn it back and do it again, paying close attention where the distributor is when the light flashes. You'll be really close. Now if you want, start the engine and do the final timing or just decide it is close enough and go on with your life.
 

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