Re: Dickinson Newport diesel heater - no fuel flow
Can you moderately pressurize the tank and see if anything 'pushes' through? Might be a way to clear an airlock. It wouldn't take a lot of pressure if there's no physical blockage.
1984 Fast/Nicholson 345 "FastForward"
".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)