The pump may care which way it turns. I did some checking on this 7-8 weeks ago. I don't know how much difference there is between the MD and SMD, but what I understand is on the MD there is an idler gear that turns the pump in an opposite direction than the gas. Which turns the Mag in a reversed direction from the gas, but that the Mag can be changed to fire correcttly in either direction. If it is a distibutor, if IRC, the part #s on the distributor are the same for the gas and deisel, so I haven't understood that yet. I had some good info on the RPM site under Engines and Jim Winehouse (hope spelling is right)who posts here knows more about them than I do.Just saying, check it out.
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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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