Cool link Highwayman. Guess I never thought of the oil "feed" passage as more of an oil "resivoir", with the wrist pin getting its oil supplied via centrifugal force as the mass of the con-rod moves downward. So then, when the crankshaft to con-rod pressurized lube hole does line up said resivoir is refilled or kept full. Guess I previously always imagined some level of oil pressure was maintained/or supplied through the four strokes, not just one. It makes sense though when taking into consideration the four strokes and the speed at which these events take place.
See, now this is what I love about CompD..woke up for no good reason at 3:30 in the AM and still learned some new engine tech right off the bat..:bang:hehe: