Piston, I changed my 41H more than 30 years ago. I used the transmission-rear end housing for a reservoir, Hy-tran is better for all tractors than the heavier oils. IH began using it with the SMTA and 300, the gears and bearings were basicly the same as the H and M, but the life of the newer ones was greatly increased. With 80-90 oil here in Minnesota it was a common problem to have a bearing loosen and spin in its housing, Hy-tran stoped that. I use hyd. motors, then you need the large reservoir to keep heat down. For filters the first one is homemade, it is a 1 inch pipe cross with plastic plugs placed in the side ports and a cow magnet suspened between them. Then a suction strainer made from parts from Northern Tool, finaly a 10 micron filter in the return line. I draw the oil from the drain at bottom of rear end and return to the check hole on left side, there I added a street ell, close nipple and Tee so it raised the oil level more than two inchs. After many thousands of hours I have been very happy with it. Did basicly the same to the WD9. Good luck, Chuck
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Today's Featured Article - Tuning-Up Your Tractor: Plugs & Compression Testing - by Curtis Von Fange. The engine seems to run rough. In the exhaust you can hear an occasion 'poofing' sound like somethings not firing on all cylinders. Under loaded conditions the tractor seems to lack power and it belches black smoke out of the exhaust. For some reason it just doesn't want to start up without cranking and cranking the starter. All these conditions can be signals that your unit is in need of a tune up. Ok, so what is involved in a tune up? You say, swap plugs and file the points....now tha
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