We have a 1939 D4 with pony start, and the best advice I can give you is to find a manual for it. Basically we turn on the gas and start the pony, then when that is warmed up good we turn on the diesel and engage the diesel to the pony, rev up the pony, and get the diesel spinning enough to get oil pressure. I think there is a compression release on the diesel that is used when engaging the pony to it. We always start ours with ether but they may start without it (ours is very tired). Once the diesel is running we shut the gas off and let the pony run itself out. Hope this helps, it is easier to show than it is to tell. Lon
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Today's Featured Article - Timing Your Magneto Ignition Tractor - by Chris Pratt. If you have done major engine work or restored your tractor, chances are you removed the magneto and spark plug wires and eventually reached the point where you had to put it all back together and make it run. On our first cosmetic restoration, not having a manual, we carefully marked the wires, taped the magneto in the position it came off, and were careful not to turn the engine over while we had these components off. We thought we could get by with this since the engine ran perfectly and would not need any internal work. After the cleanup and painting was done, we began reassembly and finally came to t
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