Fighterpilot
Senior Member
- Joined
- Apr 17, 2011
- Messages
- 380
twin engines, two tanks, does anyone have a picture of their fuel valving set up or a schematic? Thanks
*Twin engines, two tanks no.* Twin engines (plus generator), five tanks, yes.Fighterpilot wrote:
twin engines, two tanks, does anyone have a picture of their fuel valving set up or a schematic? Thanks
*How do you feed the port engine from the port tank and stbd from stbd tank while feeding the generators from another tank?Jenny wrote:
Any combination can be used for feeding fuel to the engines or for polishing.* Or both at the same time.
Fuel contamination can be more than just water or solids that can be filtered.Jenny wrote:
Being that my tankage allows me to*only operate with*100% garanteed polished fuel,
There are many single engine boats that have crossed oceans with less redundancy in the fuel system.
*Just a cautionary suggestion here but before slamming someone's lack of experience based on what one assumes to be true, it is usually a good idea to first determine if the person really does lack experience.* If they do, then slam away *Jenny wrote:
RickB, you are living in a dream world.* Your goal in life appears to be an authority in nautical systems but obviously without any real world knowledge or experience.
*Here you go ... depending on your existing tank fittings this may require alteration.Fighterpilot wrote:
twin engines, two tanks, does anyone have a picture of their fuel valving set up or a schematic?
*Do you understand the concept now?*Jenny wrote:What caused me to make the comment is the lack of understanding of the concept of a day tank ...
Your boat doesn't look any different than the* boats owned by nearly all the members of this forum. From your description it doesn't appear to be used any differently either.Jenny wrote:
In retrospect*I should not have posted the design because we are obviously talking about different types of vessels with*different intended uses.*
I guess if there is one thing that a person in this group can take away from this contibution is that it's perfectly okay to use off the shelf single flow gas rated valves* it.
rwidman wrote:
1. With a diesel engine where more fuel is drawn through the filters than is used and the excess returned to the tank(s), isn't the fuel "polished" to some extent without additional equipment?
2. If all the fuel tanks are filled at the same time from the same source, wouldn't the danger of contamination be the same for all tanks and that would negate any advantage of being able to isolate one or more tanks?
*IMHO, Yes & yes & I have a fuel poishing system that I wouldn't do again. I think your questions are right on the mark.
Rick seems to be off working so*here is a picture of the*one on my last sail boat.* It is two Racors and one tank but in your case you would use one more valve to select which tank you were getting fuel from.* You would also have to devise a fuel return system with two tanks where as with one it just returned to the original tank.Jacques wrote:
Rick,
Do you have a small drawing to illustrate your excellent suggestion.
I'm doing a plan to change my setup (two tanks, 1 engine and a generator). Currently there is a Racor 500 dedicated to each tank and a Racor 110 for the generator. Thus I have a "Gulf Coast F1" installed separately to polish and transfer the fuel.
After I read all yours exchanges on this subject, I think the best solution would be to use the filters that I have and add some valves to make a "Duplex".
Thank you for your help.