thanks for the reply from ALRMAN, I asked a question of him in a message, he responded................ to my RESEARCH question............. thanks to the responders.
I think he has a bad hi clutch pack on the right hand side. we are going to get some time and pull the transmission. it is out in the woods and we have to pull it there and load the trans on a trailer
transport it to my shop and see what we can find. any idea how much the trans weighs? by it self and with the finals still attached.
i truly do appreciate all the replies.
G'day Mark,
I'm assuming this is an early model 850? (mid 70's vintage)
You need to figure out if you have a hydraulic (pressure) or mechanical issue.
If the transmission pressure gauge on the dash still works - it should show the same (or near the same) pressure in whatever range you are in.
Once at operating temp & at an idle (low pump flow) flick through each range & note if the pressure drops - particularly in RH high.
If the pressure drops, there is likely leakage occurring either in the shaft end cap (worn/broken oil control rings) or the RH high clutch pack piston seal - or both.
You could disconnect the oil supply to RH high & test the pressure directly into the supply fitting at the control valve & then Tee into the circuit to see how much lower the pressure is from the first test.
OR you could swap the HI/LOW hoses over & see if the problem goes to RH Low (note the operating position of the controls will be opposite) - showing a supply issue OR if the fault remains in RH High - an oil control ring or clutch pack issue.
Usually the fault is with the oil control rings - however most people keep operating like that for many hours & pressure is sent to both the HI & Low at the same time.
As most operators push in Low - pressure is also being sent to High - dragging it like a brake which usually overheats the oil & also burns out the clutch pack.
When this occurs there is often some evidence in the transmission suction screen...... lots of bronze clutch plate material.
Hope this helps.
It's always best to start a thread to discuss this type of problem on the public forum as the information will help countless other people in the future, long after us old Case blokes are dead & buried - but I've already now told you what I would have told you in public chat, & I don't like repeating myself...
Cheers
alrman
To steal ideas from one person is plagiarism. To steal from many is research