Throw out bearing

I'm stumped. Have you ever known a throw out bearing to act like a bad pilot bearing? Squawk and make the tractor creep forward when you let the clutch pedal up?

It's a 1365. I put a whole new clutch and pressure plate in it three years ago this month and put a new throw out bearing in it when I did. It was making that noise before I put the new stuff in it,then for about a year after,it was alright. I went back to making the noise again then. I noticed that almost every time it does,it only does it in high range,but that's not to say it won't in low range but it's rare. They have an odd clutch setup in them where the PTO clutch runs against the flywheel and the main clutch in actually inside the pressure plate. The PP has two sets of three fingers for the two throw out bearings,one for the foot clutch,one for the PTO hand clutch.

They don't have a pilot for the main clutch and transmission input shaft,only for the PTO shaft which is the inside shaft like any other Oliver except the Super 55 and 550.

The clutch was slipping bad again,so I split it today. The throw out bearing that's only three years old is catching and rolling real rough. They don't slide on a sleeve,they just move back and forth on the input shaft. All that makes any sense to me is that it's hanging up and grabbing on the shaft while it's up against the fingers on the pressure plate. I just can't wrap my head around it.

I took the top off the transmission. I can't find where there's anything obvious in there. Everything looks excellent. It's all tight and rolls easy. I've had the transfer case out of the bottom of is several times for a leaky seal and broken snap ring more than once. I can't ever find any shavings or anything in there,and it's the lowest point in the whole transmission. The PTO pilot bearing rolls smooth as glass. That's always engaged anyway to run the loader pump and relieve the strain on the engine thrust bearing.

I'm taking the clutch and pressure plate in to have them rebuilt and I'll put another new throw out bearing in it. I just never had a T O B act like that.

RR those are a 445 460 long correct? They had boat loads of issues withe the clutch around me. As for the bearing ws it adjusted right are you a clutch rider? Could the shaft be bent or rough? Is linkage parts not working right? Sleep on it and look it over tomorrow in detail!!

Randy, I m not gonna be much help on this, but any chance your flywheel isn t flat? I always have the flywheel turned by the same shop that rebuilds the clutch, that way the only dummy in the process is me. My 1365 doesn t get near the use yours does, but we ran it pretty good this spring transplanting and the new clutch seems good, no throw out noise. That s all 6 years old now.

I'd be looking to see if the pressure plate is adjusted right first off.When I put the new clutch in my 1365 4WD I ordered it all as a unit already set up no problems so far.
Also put in a button clutch plate there have been issues with the fiber faced ones.

This was a whole new unit with a button clutch. They said three years ago that the original was too far gone to rebuild.

I didn't have the flywheel ground because the only thing running against it is the PTO clutch. When I took it apart three years ago,you could still read the part number on the facing of the PTO clutch,so I didn't figure anything had worn against the flywheel.

When I had it apart three years ago,I pushed some grease down between the PTO shaft and the transmission input shaft incase there was any movement causing them to bind up together. You'd think if that was it,it wouldn't make that noise with the PTO disengaged,but it does.

I don't have any trouble putting it in gear. That's what has me questioning it being the throw out bearing. I just can't figure why it only does it when I start to let up on the pedal and why it's only in high range 99.999999% of the time. I can understand the noise from a bad throw out bearing,just not the creeping. It acts just like the old 66 and 77s when that brass pilot bushing goes bad.

They're a Fiat 640. It's an odd Euro clutch set up that's for sure.

That is weird,I've found that when I'm doing something like loading/unloading hay bales the clutch is a lot smoother when I use low range so i can just drop the clutch rather than have to ease it to start every time.Takes longer though since reverse is so slow.

I was wrong. That bearing does slide on a brass tube. It's inside the PTO T O B.

I took the clutch and pressure plate to Clutch Dynamics today. I told Dan what was going on with it. When we had it tipped up in the light,we could see that it had been hot enough to turn some spots blue. He said he thought that some of my problem was about the same as what was happening with the 1600 when the dash was sliding. He thinks the pedal and linkage are worn so bad that even though I have the free travel adjusted,it isn't opening the plates up as wide as it should be and the clutch disc is generating a tremendous amount of heat. He said that it most likely boiled the grease out of the T O B.

He said that the shuddering and creeping could be from the ceramic disc pads being glazed up and chattering,but couldn't say for sure. I stopped at the dealer on the way home and ordered a new T O B and ordered a new brass bushing for the clutch pedal too. I'll take everything else apart and if I have to,I'll weld the holes shut and drill them back out and weld up the rod if it's worn.

We'll see what happens when all the parts get here and I get it back together.

Our next door neighbors had a 2wd 1365 and from the time it was two years old it made some chatter noises when you let up the clutch. The old guy that had the tractor just loved using that tractor, but he sure didn?t like hearing it make those sounds. It was a beautiful tractor to square bale with.