D2 clutch trouble

Have you filled the drip cup on the clutch release bearing? oiled all the pivots on the clutch linkage?

Have you inspected the clutch links between the release bearing and the pressure plate for all parts present and in reasonable condition?

If nothing is obviously wrong, running it to polish things up should help.

I'm wondering if the pilot bearing got over greased somewhere along the line or the clutch disk has old grease/oil on it? I had a 5J a few years ago that wouldn't go into gear cold but after it warmed up, no problem. I tracked that down to grease/dirt build up in the flywheel. I don't recall the clutch hanging up like that though. Maybe time for a clutch rinse with gallon or two of diesel or kero? That was how I "cured" the problem with mine.

I'm wondering if the pilot bearing got over greased somewhere along the line or the clutch disk has old grease/oil on it? I had a 5J a few years ago that wouldn't go into gear cold but after it warmed up, no problem. I tracked that down to grease/dirt build up in the flywheel. I don't recall the clutch hanging up like that though. Maybe time for a clutch rinse with gallon or two of diesel or kero? That was how I "cured" the problem with mine.

I'm wondering if the pilot bearing got over greased somewhere along the line or the clutch disk has old grease/oil on it? I had a 5J a few years ago that wouldn't go into gear cold but after it warmed up, no problem. I tracked that down to grease/dirt build up in the flywheel. I don't recall the clutch hanging up like that though. Maybe time for a clutch rinse with gallon or two of diesel or kero? That was how I "cured" the problem with mine.

I am more inclined to think the pilot bearing never got greased enough and is siezing up maybe?

Washing should help. I would work it quite a bit with the solvent in there, work the clutch a lot. Drain it, grease and oil everything and work it enough to dry it out.

Tom

I wondered about the pilot bearing also but once the clutch is out, the transmission stops fine. Always shifts really nice.

I think a wash is going to be my first step because like I said, it is fairly oily in there now. Can't hurt!

I had the same problem before I rebuilt the Main engine. Oil was leaking out of the rear main and getting on the clutch. Was worse when I was pushing material up a pile, more oil getting back to the clutch. Rebuilt engine, and installed new clutch disk, one in the tractor has afew missing teeth. No problems since. I would try the flush first.
Tim

When you dump the diesel or kero in, go ahead and work it for a while. .15 - 20 minutes or so, or just lit it sit and idle while engaging and disengaging the clutch. Put the cover back on for this or you're gonna have diesel/kero all over the place!!

Then drain it, leave the top cover off as well as the drain plug, let it sit for a few hours and run it again, shoving some dirt around while leaving the top cover off. This should finish drying everything out. Before putting the cover back on, lube everything per Cat's specs and you should be good to go.

A lot of those old D2's had the clutch drain plug drilled and usually a cotter pin hung in the hole to keep it open so the clutch housing could drain. It's not a bad idea, but check before you dump in a bunch of kerosine. ($4.00/gal out here!) If it is drilled, swap temporarily with the transmission fill cap or one of your final drive caps long enough to do the wash.