I don't think so. Here is a video of the output shaft running alone. My son helped me and sat in the seat, turning on the PTO. I didn't even know when he turned it on, it was that smooth.
Not the best video...me with my hand-help cell phone camera. But the shiny spot on the end of the shaft sits pretty solid, so I am thinking the shaft is running straight.
The shaft is a poor design. It is essentially the splined output shaft with a gear on the other end. The gear is supported on either side by ball bearings. But they are really only the thickness of the gear (1/2 in or so) apart. So those two bearings have to support the shaft, and all the weight/vibration it carries. With that little lateral separation between the bearings, the "support reactions" as they are called is incredibly high. I am surprised the aluminum transmission cover itself did not fail.
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Today's Featured Article - What Oil Should I Use? - by Francis Robinson. I keep seein this question pop up over and over again in discussion groups all over the web. As with many things there are often several right answers and a few wrong ones. Some purist I'm sure will disagree to no end with what I will tell you but most of us out here in the real world don't really care do we ? Some of them only bring their noses down out of the air long enough to look down them anyway. If you are like me you are only doing this old tractor stuff because you enjoy it. You
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