Fuel issue in new engine. 1991 restored Westy


New member
I'm stumped. New engine, new fuel pump, new idle control motor.... It'll drive wonderfully for 10-20 minutes and then the new fuel pump stops (it sounds too loud) the engine fades, dies, after a few minutes it'll start but won't stay going until shut down and cooled. Then all is fine again.
Anyone have any ideas how to cure this ill?