Draining the 5U12142 D2

I've seen so many pony blocks cracked by freezing, I would be very hesitant to say one was absolutely drained out. I know many of them have serious sludge in the lower connection to the clutch housing/engine block passageway and that is the only way one could drain out. I would put antifreeze in it and run it enough to get it well distributed thoughout the cooling system.

I had plain water in our 9U last year and realized it was probably going to feeze that night, so I drained the water as well as possible and poured a couple gallons of antifreeze back in to hopefully mix with whatever water was left. Not good, but the best I could do at the time without starting it up and doing it right.

Guys, I followed your advice and ran over to Advance Auto and picked up 4 gallons of undiluted antifreeze, Closed everything back up and put the 4 gallons of antifreeze in and 2 1/2 gallons of water until it started spraying out the pony motor drain cock. I then let her run until she was up to temp, the water in the radiator has a good antifreeze look and smell so it should be well mixed. I sure would hate to cheap out on $40 dollars worth of antifreeze for a $1000 dollar pony block.
Thanks Dennie

CC, In light of the fact I could only get 6 1/2 gallons in a drained system that according to the book holds 7 1/2 gallons tells me there was another gallon stuck in the system somewhere that didn't drain with the potential to freeze and break something. Good call!

There should be a coolant drain petcock/plug down near the clutch compartment on the rear of the main engine to drain the bottom of the pony motor and the back of the main block. On my D2 it is located (hard to see) down under the pony oil drain pipe and behind the main oil fill pipe.
Jeff

Dennie,

Unless you plan on using the critter during the winter, I'd drain the pony gas tank and the carb as well. Any gas left in the carb might just wind up plugging it up as it evaporates. You might also leave the main clutch disengaged and tie back the steering clutches so they're released, then tarp the whole critter for the winter. I also put a bucket upside down over the shift lever on my D4 even though I've replaced the boot this summer. I use the D4 during the winter but even though it gets used, I still try to keep it as dry as possible.