There are no syncros in the trans. The gears are slid along splines to mate with other gears. When the clutch is pushed in from neutral(engine running) the main clutch disk and TA housing as well as the input gears are all spinning at engine speed. The gears are running in Hytran oil (pretty thin and low in viscosity) It can take as much as 15 seconds to slow these to the point that the gears will mesh with little clashing. If the clutch is dragging the Flywheel or Pressure Plate when the pedal is pushed in all the way, or the pilot bearing is dry and dragging, the disk will begin to spin on its own, causing the gears to grind. The test is to carefully start the tractor with the clutch down, while in gear (first is fine) (remember it must be remembered that the tractor could move if the clutch was let up) then put it in neutral with the clutch remaining down for the whole test. Now try to put it in gear. If it goes in easily with very little or no grinding, I think it is normal. If however, it grinds as badly as you describe, the clutch is dragging or the pilot is binding where the clutch shaft spins in the back of the crank. Jim
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Today's Featured Article - Gatherin of the Orange - by Rick Nikolich. In July of 1998 I was talking to fellow Allis Chalmers collector Mike Schilling about the annual "Gathering of The Orange" AC show coming up in August of 1999. He got this wild idea that we should get a convoy of AC tractors and drive them from Charlotte, Michigan 105 miles to LaGrange, Indiana.
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