Hi Roy, I assume the 434 is a BD-154 Diesel engine. To make a tank heater work, it must circulate the water in the engine block. The bottom of the tank heater (cold water) can be taken from the drain tap hole in the side of the block just above the starter. The top of the tank heater (hot water) can be connected to the thermostat bypass pipe in the water pump. If you have an older water pump assembly there is no thermostat bypass pipe. We had early B414 and 434 that had no thermostat bypass pipe. The later 384 that we had a thermostat bypass and the dealer installed a tank heater. On the B414 and 434, we installed an inline heater in the lower rad hose.
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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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