In Reply to: Re: 2n oil filter assembly posted by Francois on September 20, 2020 at 11:41:48:
No Sir, all the oil does NOT flow thru that small orifice. This a a partial flow or some call it a bypass oil filtering system. Most of pump output is routed to crankshaft main & rod bearings, but a small flow passes thru the filter/orifice. The idea being that over time, all the oil gets filtered......I have no idea what that time might be...hours, days, months??? In more modern engines the flow goes from pump, thru filter & to bearings & is a "full flow" system. Great improvement as no unfiltered oil goes to bearings.