clutch pilot bearing

The clutch pilot bearing is greased through a hole in the bottom of the tractor. I own a '44 and '47 M Farmall. These 2 tractors are set up this way for
lubrication. My SMTA has the hole in the bottom of the casting, but there is no grease fitting available. Someone knows why??? Thanks, Ellis
 
I believe you mean throw out bearing. Maybe the clutch was replaced and the new throw out bearing was sealed,no grease fitting.Mark.
 
According to my owners manual the grease fitting at the bottom of the casting that can be found by turning the engine is the clutch pilot bearing, not the throw out bearing. My own opinion is that IH went to sealed bearings for that application. I wanted to find out if others had the same opinion. Ellis
 
That's a new one for me. My IH300u has a grease fitting for the throw out bearing,but you have to remove the cover to access it. But I have never worked on an M before and can't quite visualize how it could lube the pilot bearing,which would be rotating within the flywheel and crankshaft. All pilot bearings I have ever seen were sealed. Mark.
 
There's a grease fitting in the flywheel that you line up with the access hole.

Grease travels through a bore in the flywheel to a hole in the outer race of the pilot bearing (which had to be aligned when installed).

If it's been replaced, it was with a sealed unit, so the grease fitting is useless.
 
My 53 Super M has the sealed bearing but I've worked on an H with the grease zerk in the flywheel. I greased the 2 Ms years ago on the farm but can't remember.
 

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