I bought a John Deere 70 diesel this winter. The best part of the tractor is the engine. Starts and runs just as it should. Unfortunately it has been converted to electric start, but that works very well also. Been working on the battery cables, starter switch, batteries, and solenoid. Finished that today and now the tractor starts itself! Here is the problem today. I knew the clutch didn't have the snap it needed and today when taking the tractor down the road in 3rd or 4th it did slip on small hills. So, I tightened the clutch bolts a turn or two and got a good snap engaging and disengaging. The problem now is it is too tight and you can't stop the pulley to put it in gear. If you put the transmission in gear with the clutch out you can't start it without the tractor wanting to move. I did back it off a little bit and now it will start with the clutch disengaged and the tractor in gear, but it does put pressure on the gears enough that you can't take it out of gear. Does it just need to be disassembled and cleaned up along with replacing any worn parts? Appreciate any ideas. Thanks.