Fuel Pump Won't Shut Off

[Jerry Clayton]

Kieth

Change the needle seat assy on the seconaries of that carb
when a holley runs over the vent tubes with the engine not running and the throttle blades closed, it will run out around the throttle shafts

Check your fuel system for debries that is fouling your pressure regulator and needle seat assy

Flush all the hoses in the system, check all screens, set the regulator at 5-6 #, make sure your pump is shutting off

Jerry

[Ron61]

Jerry pretty much said what the rest of us have been saying. He is correct about the fuel coming out around the throttle shafts if enough goes into the throttle body with the butterflies closed. Also while you are checking all the rest you might want to put what they call whistles in the carbs. They will keep gas from splashing up under braking and going into the vent areas. I had to have that done with mine and what a difference it made. If your pressure has been to great you could have the needle valves all messed up. My book on the 900 Holly I am running calls for just 6 to 8 pounds of pressure. My pump puts out 14+ so I have to watch it and make sure the regulator doesn't back off or the filter get full of crap. The gas out the muffler is just unburned raw fuel which has poured into some cylinders and is being ejected. Not good as some of it most likely went into the oil pan too. I would have both of the carbs checked out completely along with the rest of the stuff Jerry mentioned, and then change the oil and filter to make sure there is no gas in the oil.

Ron

[neverwouldof]

Ok .... will do . Thanks guys for your wealth of info!


I'll update once i get in there and see whats happening.

Keith