In Reply to: Magnetic oil/block heater posted by dave#1 on October 08, 2018 at 11:42:08:
I don't remember what year your tractor is Dave.
Up till about mid 68 they had screw in frost plugs so you'd need to use an inline coolant heater. After 68 or so they used a typical press in soft plug.
If you have the newer style I suggest you install a block heater.
I have two of those 3 cyl diesels that I put block heaters in and they work great.
A couple of hours on the heater and they will start like it's July. There is a frost plug just in front of the starter. A bit hard to get in there to install the heater but it can be done without pulling anything off the engine.