I changed the lubricant in the transmission on my ’48 H and now the belt pulley housing runs hot. I drained out about 4 gallons of thin white-looking fluid and replaced it with 5 gallons of 85W140. 5 gallons filled it to the plug on the side near the clutch pedal. I poured about a quart of the new lube into the belt pulley housing. I changed the bearings and seal on the belt pulley about a year ago. The first time I ran it with the new bearings and seal, it did not run hot.
After changing the lubricant, I ran the tractor full throttle for about thirty minutes pulling a sawmill. I laid my hand on the pulley housing out of curiosity and it was hot enough you didn’t want to touch it very long. I took the fill plug out of the housing and probed a stick into it; it does have lube in it.
Does anyone have an idea why it runs hot with the new lubricant? It was a hot day in the 90’s, but I wouldn’t think it would run that hot.
Thank you.
After changing the lubricant, I ran the tractor full throttle for about thirty minutes pulling a sawmill. I laid my hand on the pulley housing out of curiosity and it was hot enough you didn’t want to touch it very long. I took the fill plug out of the housing and probed a stick into it; it does have lube in it.
Does anyone have an idea why it runs hot with the new lubricant? It was a hot day in the 90’s, but I wouldn’t think it would run that hot.
Thank you.
