Lou you may want to check the splines on the U joints. Most of the pitching of the engine will be felt as fore and aft movement that will be allowed by the splines incorpotated in the U joints. Kinda like lubricating an intermediate bearing. You must have a zerk fitting on the outside of the barrel to keep the splines lubed.
But perhaps I missed something and that’s not the case??
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Eric
North Western Washington State USA
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