Home › Forum › Ask A Member › Early OMC fuel pump › Re: Early OMC fuel pump
The ultra-simple West Bend/Chrysler pumps seem to work fine without any diaphragm springs, but these are only used up to–I think–20 hp or so. Since the inlet and outlet valves are reed type, there are few loose pieces to get out of place and replacing a diaphragm is a five-minute type job. Maybe ten minutes if you have to make one. http://www.go2marine.com/product/158261 … 747-1.html
http://thumbs3.ebaystatic.com/d/l225/pi … 7389_1.jpg
Most of these are part of the transfer cover but there are remote-mounted versions:
http://www.marineengine.com/parts/mercu … 190/4A.gif
My only real point is that, at least for small motors, it doesn’t take much for a serviceable pulse pump.