air vent lines clogged

[johney myers]

on a hot day, running my 2004 f225 engine for awhile , then after engine sits for an hour, engine will stall immediately after gas in clear fuel filter on engine is consumed.. Bulb pressure is zero, lots of air in line.. I have to pump excessively to remove air and get pressure and gas flowing thru blub again. then engine starts and runs perfectly..

where is the air leak?? before or after the bulb ?? the vent lines from the tank to the bulb or the vent lines on the top engine.

[robert graham]

Check all fuel line connections and fittings from tank pick up tube, tank top fittings, primer bulb connections and clamps, quick disconnect on front of cowling(O-ring), fuel pump, fuel filters, etc....sounds like it's sucking air from somewhere...Good Luck!