easy way to determine if air issues is part of your problem is to temporarily wire in a 12v fuel pump way back at the tank. This pushes fuel and nothing is sucked on beside the few inches to a foot of line you needed back by the tank. With pump on.... if this solves your problems...... then you know to look for air leaks.

Also pull you fuel cap off and see if your symptoms change. clogged breather?

__________________
"Know other lessons I need to learn? TELL me. Tired of learning'em the hard way".

Glow Plug Wait: [i} Time of silence in homage Rudolph Diesel. Longer you own a diesel. more honor you give". [/i]

Life; SNAFU Situation Normal All Fouled Up, & FUBAR: Fouled Up Beyond All Repair

-Now: Snafued Jeep TJ w/OM617 2Be daily driver & building SS M1079 w/Ambo boxed /live in Adv. Truck, Diesel KLR conversion
-Sold 62 UNIMOG Camper w/617 Turbo, 85 300SD