Block heater install questions and options

Rapidrob

Member
Search engine here leaves a lot to be desired.
My '68 4020 Propane does not have freeze plugs.
My options seem to be a Tank type heater or perhaps a propane fired heater. ( read about them,have not seen one for sale though)
I see 99% of the affordable kits just have a plastic "T" in the kit to splice into a coolant line.
My question is, is there a better way to do this? If, so just what plumbing adapters and other fittings would be needed to install a tank heater?
Are there any good photos of what was done to install this heater?
There is a good bit of room on the right side of the block to mount the tank heater.

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DEERE made/makes a tank heater kit, and there's aftermarket options.

Tank heater mounts below generator.

Bottom line of tank heater crosses front of engine and connects to block drain on opposite side of engine.

Outlet (top port) of coolant heater connects to port in center of head between sparkplug that now has hex plug in it.
 
There are lower hose heaters made. But it may not have room for that either ?
Surprised you would need one ? Our gas 4020 started real easy in cold weather. It just set in a pole barn with no heat so it had some cold days to start up and go plow snow.
 
Also just wondering if those spark plug wires are automotive resistor wires ? or tractor wires with actual wire in them ? If auto wires that may be the issue.
 
for an old tractor they are.
Also what is the spark plug gap ? I seem to recall reading the LP were to be a lot closer than a regular gas for some reason ? Maybe this is the reason ? I've very seldom seen or worked on LP tractors in my area they are few and far between.
 
On my 4020D, I mounted a tank heater right next to the block drain, and ran the outlet hose right up over the top of the engine into the pipe plug in the enter of the head. Works good.
 

Carbon filament resistor wire is a phantom ignition problem looking for a place to happen.
Either solid wire or spiral suppression .
 

Battery Heaters are available to keep the batteries warmer...

A Fully charged set of batteries will only deliver 50% at Zero Degrees...

Flat Panels or flexible Panels are not hard to install..
 

The battery ( only one in this tractor as the holder has been moved and exposed ) is always kept inside until needed.
 

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