Re: Help identifying PTO

Posted by Wardner on February 21, 2007 at 20:08:41 from (4.154.240.39):

In Reply to: Re: Help identifying PTO posted by JayWalt on February 21, 2007 at 13:50:37:

You have what is called a "crash box" in your tractor. We all have crash boxes. My first vehicle (1947 IH truck) had a crash box with straight cut spur gears. My second vehicle (1932 Ford PU) didn't have a crash box. It had a '39 tranny with synchros and helical cut gears. Don't compare your 300 with your S-10.

If your constant mesh gear and countershaft are turning with the clutch disengaged, it is probably due to the pilot bearing which located at the center of the flywheel. The bearing is supposed to be permanently lubed but fifty years stretches the concept of permanent when it comes to machinery. You have already indicated that you don't have much clutch facing left. While the facing was being eroded your bearing was also spinning. The inner and out race were moving at different speeds and probably in the presense of considerable heat. The pilot bearing can get so bad that eventually you will have to shift gears with the motor turned off unless you become expert with the simultaneous use of the throttle and shift lever.

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