trackzpeed Posted January 25, 2014 Share Posted January 25, 2014 Started to get a loss of fuel stall at high rpm with full throttle 3 weeks ago and assumed mechanical pump was going bad. I've been out of country for 2 weeks so when I returned I replace the fuel pump and get no fire at all. There is at least 3 gal in the tank and I have cleared all the lines but when I crank it over there's no fuel flowing into the filter and when I pulled the fuel line from the carb and crank I get no fuel as well. Grabbed the old pump and she work just fine by hand pump as well??? Why can't I pull fuel from the tank? Is it possible the cam lobe to actuate the pump lever is screwed up? Wouldn't that have been more catastrophic? I'm at a total loss. I could run the electric pump with mechanical omit but I'm not convinced that's the right choice until I know why I can't pull or push fuel. Any thoughts? Quote Link to comment Share on other sites More sharing options...
NewZed Posted January 25, 2014 Share Posted January 25, 2014 Take the valve cover off and see if the eccentric is intact. Crank the engine and see if the pump lever moves. Quote Link to comment Share on other sites More sharing options...
trackzpeed Posted January 26, 2014 Author Share Posted January 26, 2014 Well I got her to run. I don't know why but the fuel line from tank to filter ran dry and the mechanical pump could not prime it. I ran some extra fuel line from a gas can to the pump and she fired right up..... After it ran for a bit the fuel overflow,return pipe primed the fuel rails and it worked just fine when hooked back up. Never had this happen before. Really weird. Thanks for the reply. Jim Quote Link to comment Share on other sites More sharing options...
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