Posted 4/12/2017 20:20 (#5959809 - in reply to #5959789) Subject: RE: Fuel leaking back to tank on a 3208 Cat
Between Omaha and Des Moines, 7 miles South of I80
That's Ok, I understand, now.
I would say, if this guy's engine didn't have a hand primer pump, installed; then the check valve that you describe, becomes way more important, to prevent a possible drain-back.
I would have to say, it would be rare if I ever saw a CAT 3208 engine, without a hand primer pump. (but I'm sure there are probably some out there)