[rotorwrench]

Ford of Canada did a lot of things differently. One poster mentioned priming the filter canister during service. I wanted to add that a bypass filter is not under a lot of pressure since it has the restrictor orifice and most of the oil will drain back into the pan after the engine is shut down. There is no need to prime it really. You can if you choose to but any extra will still drain back into the pan.

These canister types were certainly not designed to be a pressure flow type filter. If a person wants to modify for a pressure flow type filter then a spin on adapter or beehive type can be used but the block has to be set up for it. The engine block would need the out flow boss drilled since most don't have that feature. The flow back has to be blocked off from the pressure side so the engine will pressure flow as it should. The wartime engines made first for the Canadian and second for the Dearborn made universal carriers were the first Ford engines to have this feature so they could have pressure filtration and also an oil cooler in the line. Some big trucks used this system but I'm not sure when that was or if it was just a Canadian thing or not.