Just a comment about the need for bleeding.....I never had a real problem with bleeding the W50. If I filled the filters before installing them, as I recall, the thing would start. Maybe once or twice I had to loosen the collar on an injector if the air got that far and the engine was running rough, but I do not recall regularly having to go through the bleeding procedure to change filters. You do have to bleed when you remove the pump or somehow empty the whole line and pumps of fuel. Remember to first turn off the fuel at the tank before changing filters or in any way opening the fuel system--otherwise the fuel will empty back into the tank and it is a pisser to pump all that fuel up through the lines and back into the system. The engine will expell a little air itself, but not completely empty fuel feed.
I think turning off the fuel at the tank when changing filters is important for any engine you want to start without rebleeding.
Ray Durkee T37 #373
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