Those hyd. pumps can make a good racket. I'd of started it up with that coupling off to see if that quieted it down. With engine off grab fan blade and see if you get any wiggle at all. If you get some the water pump bearing is going out. Now the 3020 has an engine balancer assembly and I have read where the bushings in them can fail. If not caught in time it can damage the engine block if it lets loose. I have not been around 3020 much so I don't know what sort of sound if any they make with a failing balancer. But if I owned one I'd sure be worried about it failing from what I have read about them.
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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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