I am a first time tractor owner with a 1955 Ford 860. I drained the transmission fluid for changing. I also removed the transmission inspection plate which is located near the drain plug. There was about ? inch of crud on the top side of the plate. When cleaning it off I found a bent cotter pin which apparently had not been connected to anything. I also noticed a hole in the center of the plate which obviously had been clogged. My parts manual shows the plate (Part# 7518) and the cotter pin (Part# 72038-S) in Section 7 page 9. I can?t determine from the diagram where the cotter pin belongs and I?m also wondering what purpose the center hole in the plate serves, or if they're related.
Secondly, when I bought the tractor I replaced the coolant, radiator hoses and thermostat. I used a 160 degree thermostat that I purchased at an auto parts store. I?ve noticed that the thermostat doesn?t open until the temp gauge reads 220 degrees. Upon opening the temp drops to 170 or so and remains there. Should this be of concern? My manual states the thermostat should begin opening at 158-162 degrees and be fully open at 178-182 degrees. If my thermostat is the issue does anyone have the brand/part number of the correct one? Any info will be appreciated. Thanks.
Secondly, when I bought the tractor I replaced the coolant, radiator hoses and thermostat. I used a 160 degree thermostat that I purchased at an auto parts store. I?ve noticed that the thermostat doesn?t open until the temp gauge reads 220 degrees. Upon opening the temp drops to 170 or so and remains there. Should this be of concern? My manual states the thermostat should begin opening at 158-162 degrees and be fully open at 178-182 degrees. If my thermostat is the issue does anyone have the brand/part number of the correct one? Any info will be appreciated. Thanks.