I have a couple of Kats magnetic heaters. Two of them on a 4020 diesel sitting outside will not get it started when it is below zero. Just not enough watts there.
But if you drape the whole front of the tractor in a blue tarp, and put a 1500 watt ceramic space heater under the engine overnight, then she will start.
Do not know what to do about the hydraulics issues on Sam's tractors. The newest thing I have ever worked with is over forty years old now. A hydrostat tranny is pretty high tech in my family.
