About .030 clearance between dist shaft bottom and seat in pump shaft. Measured depth from top of block to slot in pump shaft (new pump shaft with iron gear). As near s I can tell the bushing rim is fine- some scratches but oil slots look plenty close to a new one. In other words, no smoking gun on the dist shaft length.
I’m wondering- I believe this engine has 20w50 Brad Penn oil in it. It probably has a high volume oil pump too. Possibly too much load for the bronze gear?
What do you think?
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