Iv had a Super MD for about 4 years now went though the engine etc. They have a tendency to crack heads when they are shut down hot and not allowed to cool and equealize after they have been worked hard. If i for instance am using it for plowing, or bush hogging, i will park it in the shade and leave it just above an idle for ten or so mins. Make sure you leave it in the diesel postion when you have it off to allow the sarting valves to cool on their seats and not warp. As far as the sudden rev up, it shouldnt really be doing that, the manual says to have the speed control lever 'throttle' to about the 1/3 to 1/2 way position when switching to diesel. However mine will swithch lower then that. I think the main thing you have to worry about with the reving at a start would be to blow a head gasket, however this is true with all engines in general at a cold start. I personal dont see the need for a block heater that is why they start on gas, and where popular in cold climate areas where other diesels at the time would have had a much harder time starting.
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Today's Featured Article - Chores - by Frank Young. The ceaseless passing of time! It is at once our friend and our enemy. It measures our progress and it makes us old. Like most features of our life, few things are all good or all bad, and most such judgments depend on our own perspective or viewpoint. In our particular hobby, we enjoy the nostalgic return to the days of our youth as we recreate many of the scenes that took place on the family farm that served as the stage for the first few acts of the play that is our live
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