Allis Chalmers 5040 Clutch

Hi guys, I have a new to me 1976 5040.  6 speed with the dual clutch.  The clutch has been slipping badly (known problem when I picked it up)  I have the inspection plate removed after taking the loader frame off. 

Anything in high range is completely useless.   When I take the inspection plate off the first thing I notice is alot of grease.  Second thing is the clutch fingers are touching the throw out bearing (I think there should be a gap).    Does anybody have access to the clutch specs.  How to adjust?  Basically pages from the service manual.  

I am about a day from splitting the tractor, I only have the fuel linkage and a hydraulic line to disconnect and I can start.   I expect once I get it apart it probably needs a whole clutch kit and flywheel machined but I would like to verify if I knew the tolerances. 

I have never had a tractor with a greaseable throw out bearing.  Nice feature but don't over do it I would think.   My dad just had to have the throw out bearing done for the second time on his Case 685.  $$$ to have a shop involved.  He wishes it was greaseable!.   

Lots of mysteries with this 5040.  Unknown hours.   The previous owner said it was a loader tractor used in the hay field.   He is an older guy that seems to buy and sell alot of equipment.   He was using the loader and noticed the transmission was overflowing with fluid.  The seal on the loader pump let go (I posted previously) and was dumping into the trans.   I said is it possible a bunch of fluid got dumped into the clutch area?  It just feels like nothing is there.  I can pop the clutch in 3rd low and the tractor just starts to walk forward.  High range 4th it wont even move unless i am downhill.  No smells, no smoking. 

I only have to disconnect the main hydraulic return line and I can have it split tomorrow or the next day.  

It would be nice if I took this apart and it just needed a clutch disc and not the whole kit.  I am in Canada, probably looking at $1500 for the parts at least.