I've never understood how rod side clearance could greatly affect oil volume through the bearing. (i.e., excess oil throw-off, windage, oil on the cylinder wall leading to oil burning/overloading the rings, etc.)
The oil clearance itself limits the amount of oil that can flow through the bearing, not the side clearance. If the side clearance were unusually tight, I suppose it could restrict flow--but it'd take a considerable lack of side clearance. Excess side clearance merely allows whatever oil that can flow across the bearing, to be flung off. So it's the bearing clearance that limits oil throw, not side clearance.
Am I wrong?
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