I have 3 "good" sets in my parts pile. All of them show shaft and rocker bushing wear to some degree. The bigger problem is the unavailability of rocker arm bushings - if they"re not tight to the shaft oil just runs out the end rather than lubing the shaft and being forced up the rocker to lube the valve and pushrod.
I figured a precision shaft and new brass (not Oillite) bushings, drilled to feed the upper rocker, would be better than another used part that"s already on the path of failure.
I actually thought of rerouting the oil line to feed the shaft directly but that still would leave the clearance problem, would have to flood the upper and starve the cam/mains to get adequate oilling.
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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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