I have looked at the components in the parts manual. I believe there is a possible bent part. Measuring the runout will require a dial indicator that moves side to side. (common in machine trades. Place this on the oil pump stub through the hole where the distributor mounts, touching the side of the connection. Have someone crank the engine by bumping the starter while you watch the dial. It should be less than .001" change. another way to check is to put a tube (even plastic stiff tube), about a foot long over the drive and rotate it. If the mavement is kinked at the connection, it might be a bent oil pump shaft at the drive gear or above. If it seems to be following the oil pump shaft in a linear manor, but wobbling in a circle, I would suspect a non concentric cam shaft drive gear. Pulling the pump can be definitive, but a pain. Putting the dial indicator on the cam gear teeth and finding them to be not the same height as it turns would ba definitive as well. Jim
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Today's Featured Article - Women and Tractors - Tractor Engine Repair - by Teri Burkholder. One of the great things about working on a tractor engine with your other half is that you know what he is thinking of at all times and can anticipate his every move and his next thought of what he will do. With Ben, anyway, I can tell! He'll be busy working and I’m handing him tools and he says, "give me that..." and I’ve already got it in his hand or "hand me that....."and I’ve got the portable light right where he needed it placed to see. "Run in the house and get me a...."as I open th
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