Thread: Fuel Spurting Out

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Yep, like Mike says, that is a very old, and likely tired OEM style fuel pump and fuel leaking from those holes means the diaphragm is ruptured. Are you sure you put the fuel filter in right, with the flow arrow toward the carb? Regardless, you need a new pump and you need to at least give your oil the sniff test to be sure you were not pumping gas into the crankcase. Saw an old fella open his hood after smelling gas finding fuel spurting out over the fender with every pulse of the pump. He pulled out a kitchen match, whittled the end to a point and jammed it into the little hole, "fixing" the leak. Needless to say his engine was toast by the time he got back home that night....had about seven quarts of oil/gas mix in that old DeSoto.

Good thing is it's an easy fix - new pump from the local parts house, inlet & outlet fuel line connections to crack loose, and two bolts holding on the pump. If the pushrod slides down when you pull the old pump just slip it back up against the cam as you position the new pump & gasket, start your bolts and you're nearly done. Hook up the lines, tighten everything, start it up and check for leaks (after you're sure your oil is OK).