Return diesel fuel to the tank? - Page 2 - SailNet Community
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post #11 of 14 Old 04-19-2017
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Re: Return diesel fuel to the tank?

Resurrected old thread but always new readers and facts dond't usually change. Seen many return lines cut back into fuel supply line so wonder where the venting of air and cooling effect is. I vented return to a day tank which overflowed back to tank .This ran stove and was emergency engine supply and handy for bleeding at filter change. Return lines under the valve cover can fail and flood the crankcase and even if external drip on hot engine. Just some thoughts on past misadventures
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post #12 of 14 Old 04-19-2017
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Re: Return diesel fuel to the tank?

Good idea on the day tank. While we ware covering basics don't be afraid to replace ALL fuel lines, with the exception of flared copper which could be too old to. Until doing that on a 35 year old Boat, don't post "What do I do" about my fuel supply problems. Sounds hard line but just do it.
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post #13 of 14 Old 04-19-2017
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Re: Return diesel fuel to the tank?

The fuel return line to the tank on my Yanmar 3GM30F pumps a lot more fuel than actually goes to the injectors and is burned in the cylinders. If that fuel isn't piped directly to the tank, it will probably back fill into the tank from wherever it 'Tees' into the fuel delivery line. On the Yanmar, there is enough pressure that the hose clamps need to be seated and tightened properly or they will leak a significant amount of fuel.

For the Bounty engineer, not knowing where the fuel return line was plumbed may be excusable. Not knowing that there was a fuel return line means he was incompetent.
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post #14 of 14 Old 04-19-2017
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Re: Return diesel fuel to the tank?

Quote:
Originally Posted by roverhi View Post
...For the Bounty engineer, not knowing where the fuel return line was plumbed may be excusable. Not knowing that there was a fuel return line means he was incompetent.
IIRC, the engineer essentially admitted he was put in a role that was over his head. That was SOP for the Bounty, whose crew was dominantly some version of newbies and mis-fits.

I wonder what ever came of the lawsuits. They would be public, unless they were settled, but I don't recall where they were filed.


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