Not to hijack your thread, but I am having similar issue. 825 with perkins diesel, runs for 10 min to an hour then dies due to fuel starvation. I crack the injectors loose, spin the motor with key, get fuel droplets, retighten and it fires up and runs again for an untold amount of time. Through reading the forum, I started at the pick up line, removed and it was in good shape although a clamp seems ot not hold vaccuum , so tighten up and good. Then found that the pickup line was loose at the fitting at the lift pump. Tighten that and figured I had it licked. Same problem. Move to the fuel filter and change it, there are 2 seals on the new one, one for the top and one for the bottom. Only the bottom one came off with the old filter. Havent run it enough to see if I am there yet. One question I have at this point is, when it stalls due to lack of fuel, I can hear a sloshing noise. I am thinking it is fuel from the return line discharging into the fuel tank? Should this be audible? When it stalls and the engine gets quiet, it sounds to me like pressure that is built up bleeding off. Maybe I have it fixed and maybe not, but if anyone wants to huck there 2 cents in, please feel free. Like I said, not trying to steal anyones thunder, just seems like a related problem. Thanks all.