To get access to the tank you have to remove a few wood screws and then the bottom half of the aft cabin bed will lift off. The tank is anchord below.
I've never had a need to do it but from what I can tell there is no access port in the tank. There should be 5 penetrations. A vent hose, a fill hose, a pickup hose, a fuel return hose, and a 5 screw flange for a level sender (~2" diameter). I don't know exactly what the internal construction looks like but, while poking around for my level sender I have hit an obstruction which I can only assume to be a baffle. This particular baffle is a little starboard of centerline and runs fore and aft. Josh Muckley S/V Sea Hawk 1989 C&C 37+ Solomons, MD On Mon, Jan 30, 2017, 11:43 PM Bruce Whitmore via CnC-List < cnc-list@cnc-list.com> wrote: > Three responding questions... > > Does anyone know how easy or difficult it might be to get the tank out of > a 37/40+? > > Is there an access port? > > Is the tank baffled? > > Bruce > > Please forgive any typos as this was sent from my iPhone. > > On Jan 30, 2017, at 10:44 PM, Dennis C. via CnC-List < > cnc-list@cnc-list.com> wrote: > > As I recall, most marine diesels recirculate 5-7 times consumption. Even > at 1 gph usage that's not much flow back to the tank. Not nearly enough to > agitate the tank. > > A buddy of mine tried to motor his boat to the Gulf Coast in some rough > seas. Had to return due to blinding fuel elements. The local yard did a > recirculate and clean on his tank. Next day he tried again in rough seas > with the same result. > > If the "pro" doesn't have the right equipment, knowledge and technique, > you're wasting time and money. > > FYI, Touche' had been idle for 10+ years when I bought it. When I dug > into the fuel system, I didn't just yank the tank and clean it, I REPLACED > it with a new one. After repowering with a diesel, Touche' now has an > Algae-X and a vacuum gauge on the Racor 500. Fuel issues are one thing I > never worry about. > > Dennis C. > > On Jan 30, 2017 7:39 PM, "Josh Muckley via CnC-List" < > cnc-list@cnc-list.com> wrote: > > Dennis, > > I've watched for return flow from the injectors and been quite > disappointed. Hardly any and certainly not enough to suggest that it is > "recirculating" the tank. > > I hear what you're saying regarding the agitation not being sufficient. > Its always a question in my mind of just how bad is it in there? Is > nothing coming out cause its clean or cause its stuck? > > Josh Muckley > S/V Sea Hawk > 1989 C&C 37+ > Solomons, MD > > On Jan 30, 2017 9:28 PM, "Dennis C. via CnC-List" <cnc-list@cnc-list.com> > wrote: > > I have little faith in recirculating fuel to clean it. IMHO, if it is not > strongly agitated, sediments will remain in the corners of the tank. The > first encounter with rough seas and you will blind your fuel filter quickly. > > The best solution is to either remove the tank and clean it. Second best > is to drainit, install a fuel compatible access port in the top and clean > it manually. Third, have a professional clean it with a high velocity wand > inserted through the fuel sensor port. > > If you can't do any of those and choose to recirculate it using the > engine, install an Algae-X unit ahead of the fuel filter. > > http://www.diesel-fuels.com/algae-x/magnetic-fuel-conditioning.php > > Install a vacuum gauge downstream of your fuel filter to give you warning > when the element is beginning to blind. If you have a Racor 500, get the > vacuum gauge that replaces the T-handle. > > Carry lots of spare fuel filter elements. > > Dennis C. > Touche' 35-1 #83 > Mandeville, LA > > On Jan 30, 2017 6:30 PM, "Bruce Whitmore via CnC-List" < > cnc-list@cnc-list.com> wrote: > > Out of an abundance of caution, given that the boat I am buying has been > started, but not substantially run (other than for our survey) for about 5 > years, I would like to be extra-cautious about potential fuel tank > contamination. > > I think that the tank is about half-full. At the suggestion of one of our > contributors here, I will patch in a 12v. pump and recirculate the fuel > through my Racor filter for a number of hours in an attempt to polish the > fuel. > > That said, do you think I am better off trying to burn off the old fuel as > much as possible before putting in new (if of course the engine appears to > be running well), or dillute the old stuff with new? > > Finally, does anyone here have experience with Starbrite Star Tron Fuel > Tank Cleaner? While its NOT cheap, I'd rather start off with as clean a > fuel system as possible. The reviews seem to be good (and Practical Sailor > rated their biocide highly), but I don't believe everything I read on the > 'net... :) > > Thanks in advance! > > Bruce Whitmore > > (847) 404-5092 (mobile) > bwhitm...@sbcglobal.net > > _______________________________________________ > > This list is supported by the generous donations of our members. If you > wish to make a contribution to offset our costs, please go to: > https://www.paypal.me/stumurray > > All Contributions are greatly appreciated! > > > > _______________________________________________ > > This list is supported by the generous donations of our members. If you > wish to make a contribution to offset our costs, please go to: > https://www.paypal.me/stumurray > > All Contributions are greatly appreciated! > > > > _______________________________________________ > > This list is supported by the generous donations of our members. If you > wish to make a contribution to offset our costs, please go to: > https://www.paypal.me/stumurray > > All Contributions are greatly appreciated! > > _______________________________________________ > > This list is supported by the generous donations of our members. 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