Quote:
Originally Posted by Terry C
Can you check if the arm is actually moving? I mean is the cam lobe worn?
Other than that I've got nothing.
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I left the mounting screws a little loose and cranked the engine. The pump wiggled up and down like the cam was moving the arm. That thought crossed my mind but I find it hard to believe a cam lobe would wear enough against a steel arm, actuating a flimsy pump like that. The arm on the original pump is not worn.