Brian, the diesel in the tank would be a couple of years old. We put diesel treatment every season in it though. The day before this happened, I added 24 liters of diesel in the marina.
Bo On Sun, Oct 4, 2020 at 6:47 PM Brian Davis <brianwdavis...@gmail.com> wrote: > How old is the diesel in the tank, and have you ever had the tank > polished? > > When I recently rebuilt our Yanmar 3qm30, I changed every hose and rebuilt > or replaced all fuel and water pumps. > > I also had a guy come out and polish the 30 gal tank. That process was > cool and involved him pumping out the fuel to a filter pump and then > shooting it back in the tank aiming at the corners, etc. At the end, I had > him completely pump out everything and dispose of it. (Cost of about $325) > When I added the fresh diesel I also put a can of Seafoam from the auto > parts store which is great stuff for diesels. Then, priming and bleeding > took a while. But after I bled the air at the big fuel filter and then the > small filter on the engine, I disconnected the three fuel jets going > directly into the head. Then I cranked it until fuel squirted out of each > jet. Be sure to put a bunch of paper towels in front of each jet. That will > help you know that fuel is coming out without making a big mess. She runs > like a champ now. > > I've read the old diesel can grow fungus and of course gunk or water in > the fuel can make the engine stall or sputter. > > Brian > S/V Nina > 1980 Landfall 38SL > > > On Sun, Oct 4, 2020, 5:45 PM Josh Muckley <muckl...@gmail.com> wrote: > >> It is unlikely that fuel line down stream of the lift/priming pump is >> leaking to the extent that air is getting in since this section is under >> pressure. I would look upstream of the lift pump. This section is under >> vacuum. The upstream fuel filter (not the one mounted on the engine - >> often made by and referred to as "the racor") is very likely to be the >> problem. The rest of the fittings and connections rarely get disturbed but >> the racor does. Some racors are difficult to fully bleed and ALL of the >> interfaces which are disturbed during filter changes should be suspect. >> >> Rule that out and then we can talk more. >> >> In the mean time check out these videos for fuel bleeding and racor mods. >> >> https://youtu.be/F7KD1_EZmU4 >> >> https://youtu.be/H-GI38vE4hQ >> >> Josh Muckley >> S/V Sea Hawk >> 1989 C&C 37+ >> Solomons, MD >> >> On Sun, Oct 4, 2020, 17:24 General Gao <general.z....@gmail.com> wrote: >> >>> Hi everyone, >>> >>> Again, looking for advice from experienced sailors. >>> >>> Today on my trip, my Diesel engine stopped frequently. The last time it >>> stopped by itself was because air in the fuel line. I did do some more than >>> “usual” heeling today but the engine ran about 2 hours after that without >>> issue before this fuel line issue started. I checked the bleed valve, could >>> see that after a few seconds the fuel came out, so there was air. The >>> problem was that even after this, the engine still stopped working due to >>> fuel supply issue like every 5-30 minutes randomly. Each time I did the >>> bleeding there was air. >>> >>> How can this be? Where should I look? >>> >>> Thank you in advance. >>> >>> Bo >>> _______________________________________________ >>> >>> Thanks everyone for supporting this list with your contributions. Each >>> and every one is greatly appreciated. If you want to support the list - >>> use PayPal to send contribution -- https://www.paypal.me/stumurray >>> >>> _______________________________________________ >> >> Thanks everyone for supporting this list with your contributions. Each >> and every one is greatly appreciated. If you want to support the list - >> use PayPal to send contribution -- https://www.paypal.me/stumurray >> >> _______________________________________________ > > Thanks everyone for supporting this list with your contributions. Each > and every one is greatly appreciated. If you want to support the list - > use PayPal to send contribution -- https://www.paypal.me/stumurray > >
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