One more winter gone by.
To close this one out... The local yard (no names) had the boat for 5 weeks. Accomplished nothing. Sent me a bill for $675. Blamed.... bad fuel tank, bad injection pump, bad lift pump, bad fuel. bad bad bad.
Disgusted, I removed Generator this winter, took it to local Kubota dealer and they said it just needed cleaning. So, while it was on the bench they pop tested the injector, checked the glow plug, ran it for 3 hours. done. Total bill. $675 I Reinstalled and Done (I thought).
Ran for 1.5 hours and quit. Hooked up a gallon container of diesel. Bled it, ran like a champ.
Fuel. Took hose off pumped 2 gallons out with lift pump in a minute. Turned it off, then restarted, no fuel.
Removed fuel tank dip tube. suspected crack or other defect. None noted. Reinstalled dip tube and barb, hooked up lift pump. Repeated earlier results.
Why would it pump for 2 gallons, then nothing?
Took tank inspection port off. Used bore scope to look in back of tank. There was a piece of a fuel diaper wedged in the corner of the tank by dip-tube. Removed that. Then re removed the dip tube, this time I removed the dip tube from the aluminum threaded fitting. Packed inside was about 2 Qtip balls worth of oil absorbent diaper material! I've heard stories about people using diapers to wipe tanks when cleaning, it's a No No. I have proof!
Currently awaiting delivery of new dip tube and new hose. Figure while I have it apart, renew hose to secondary filter. Debating installing second large dip tube to run fuel polisher off of, separate from fuel fitting.