Reply by poopiekat

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Posted on Have you ever wondered?

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4349 posts in 3703 days

#1 posted 12-30-2011 05:12 PM

I recall from a shop manual for rebuilding the engine on a 195.6 c.i. OHV engine on a 1960 Rambler, how to check tolerances on the connecting-rod wrist pins without actually measuring: ”If the pin will slide freely in and out of the wrist-pin bore of the piston when clean and dry, but will not slide freely of its own weight when lubricated, that is an indication that the wrist pin-to-bore clearance is correct.” More worthless info stuck in my head, but the bigger conversation is the RANGE of tolerance, where the min/max of the dowel and the min/max of the hole may or may not fit right due to stackup of tolerances on two separate parts.

-- Einstein: "The intuitive mind is a sacred gift, and the rational mind is a faithful servant. We have created a society that honors the servant and has forgotten the gift." I'm Poopiekat!!

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