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Just wondered out of curiosity how much oil in litres per min a CB400F oil pump displaces on tick overAny oil pump experts out there?Best wishes AlSent from my iPhone using Tapatalk
To my simplistic way of thinking, worn bearings should not alter the output of the pump. If the pump is in good order it will still pass the same amount of liquid at a given speed. Don't forget that you cannot compress a liquid, only a gas. If the pressure gets too high then there should be a by-pass valve somewhere, otherwise something will definitely break. Look what happens to the conrods and crankshafts in diesel engines when they suck in some water.
Thats only for if the filter blocks so oil bypasses the filter and lubes the engine albeit with contaminated oil Steve, there is an over pressure relief built into the pump itself and operates at about 65psi if memory serves