The problems with fuel might be many, but they fall into a few simple categories: - water in the fuel (the worst kind, because it encourages the grows of algae) - debris in the fuel (should filter out, but if you have plenty of that stuff, the filters might get clogged) - mechanical problems with your fuel system (leaks, air leaks, pumps, filters etc.) - but polishing fuel won't help here.
If you have no water in the fuel, there won't be any algae growth. The gooey substance that started this discussion is the algae that growth in the fuel tank (and eats the fuel), but it grows in the water. Who knows what might be luring in your fuel tank, but the fact that the fuel is 5 years old does not mean that it is necessarily bad. Use it up or, if you have that option, pump it out and give it to the yard's tractor driver. Obviously, newer fuel is better, but if your engine was running for a few hours, your old fuel is not that bad. When I bought my current boat, it had an almost full tank and the fuel was already about 2 years old. I used it for the next two years without any incident. Change your fuel filters often enough (as per the normal maintenance schedule), buy the new fuel from reputable places and don't worry too much. Two filters (the primary 30 um and the final 2 um) should do the job. My $0.02 (CAD) Marek C270, "Legato" Ottawa, ON -----Original Message----- From: CnC-List [mailto:[email protected]] On Behalf Of Danny Haughey via CnC-List Sent: September-06-15 12:22 To: [email protected] Cc: [email protected] Subject: Re: Stus-List Fuel contamination Hi this issue is a concern for me as well. Now, on the boat we're buying, we ran the engine for probably 2 - 3 hours throughout the weekend. Between moving it to the lift and back during the survey and then out for a sea trial we never shut it off and the engine ran beautifully the whole time. My concern is that, they claim the boat never left the dock over last 5 years, the fuel in the tank registers 3/4 full, and could very well be very old. The surveyor showed little concern and just said to top it off and carry extra filters. With that information, is there anything more I could/should do regarding fuel? If the fuel were contaminated in some way would it have become apparent during the time we ran the engine? Would adding another filter assembly, in line, be a good idea? Danny Closing soon MassachusettsOn Sep 6, 2015 11:55 AM, Mitchell's via CnC-List <[email protected]> wrote: > > It just occurred to me that no one replied with a DIY fuel cleaning method. Has anyone built their own polisher? I have considered a two filter system with a bypass polisher but haven't had any issues and I don't use much fuel either. > > It isn't complicated in theory. > Len > Crazy Legs > 1989 37+ > > Sent from my mobile device. > _______________________________________________ > > Email address: > [email protected] > To change your list preferences, including unsubscribing -- go to the bottom of page at: > http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com > > _______________________________________________ Email address: [email protected] To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com _______________________________________________ Email address: [email protected] To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
