Re: 1987 Marathon 3PG wont run
you should be getting a steady pulse/stream when you crank her over with the fuel line unhooked - a pump rebuild kit is around $28, a brand new pump is around $32 so it's sort of a "no brainer" .... FIRST, though - make sure you check that all the lines are clean, filter, etc - also check the intake tube in the tank, they like to gum up on the bottom AND they like to leak around the elbow on top, being a pressfit.
Another idea, but once you go through the lines, filter, and intake tube, wrap a rag around the gas tank inlet and blow into it to prime or pressurize the system - these pumps have a very hard time prinimg themselves, and yours could just have a bubble or ? going on
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