6V-92TA in my "yard horse" stuck the fuel pump pressure relief valve open which of course kills suction to pull fuel from the tanks. Engine restarts readily with a pressurized fuel source feeding the primary fuel filter housing. I disconnected both the suction, and return fuel lines from the primary tank, plumbed in my primer pumping unit, started the engine and monitored the fuel retun hose. Nothing came back to tank with the engine ultimately starving out.
Think I'll order a rebuild kit as the pump is original from 1979. I "juiced" this engine up a bit back in 1980 including timing alteration and performance oriented injectors. It runs well and still starts easily. Never really has been an oil leaker either although it needs exhaust manifold gaskets.
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