Hi Everyone, I've been driving a car that had a check-valve hose put on right before I got it three weeks ago. I have to say the engine starts on the first hit every time even after five days sitting, not true of my '36 without the check-valve hose, both mechanical fuel pumps. The '36 has the same symptom as the Original Poster. That engine runs great, it just doesn't have any fuel to start after sitting more than a few days, either by evaporation or drain-back, I'm not sure. So I'll probably be getting ahold of Mr. Shewman for a hose for the '36.
Questions for G.M.: The check valve is in the slightly longer fitting, Correct? As it's on the car the longer fitting is on the pump, is this the correct installation?