Yanmar YSM8 stat/fuel bleed issue

[csoule13]

To keep it short, replaced the primay fuel filter/water seperator on Friday. Got that set up, started the engine, and let it run for 5-10 minutes. Everything is wonderful.

Come back Saturday. Engine starts right up. What a great engine! Get out of the slip, and while doing my usual tango of trying to get the boat turned in the right direction in a narrow fairway, the engine dies and won't restart.

Back in the slip, we start poking around, and think "Since the engine is turning and not catching, perhaps it's a fuel issue." We read up on bleeding the system. We look in the secondary fuel filter and find not a drop of fuel. Huh. After working the little lever on the filter roughly 900,000 times and getting no where, we close up the boat to avoid suffering heat stroke.

Where'd we go wrong here? I won't be at the boat for two weeks, so I've got a call into the yard to tidy this up, but that's not going to help me long term.

[Frenchy]

Could be an air leak somewhere between the primary and secondary filter, if there is still fuel in the primary- Jean

[csoule13]

Could be an air leak somewhere between the primary and secondary filter, if there is still fuel in the primary- Jean

To close this up, and for anyone who comes across this at a later date:
- Two pipe plugs where loose and letting air into the system.
- Used the fitings from the old filter unit on the new one. Wrong size, so while it seemed to work, it wasn't air tight. More leaks. Replaced, good to go.

Big ups to the yard for figuring this out in much less time than I would have.