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Plumbing 2nd 6.6 gal Fuel Tank
RaptorRon	#1  Posted on 05/16/10 - 7:59 AM
Member Posts: 2 Comments: 0 Joined: 02/14/10	I am adding a second 6.6 gal fuel tank in my 2010 150 Super Sport. I have mounted it under the seat beside the original as in the 170 Montauk. My question is how are they plumbed in the 170 Montauk or what is the best way to plumb small removable duel tanks?
Joe Kriz	#2  Posted on 05/16/10 - 1:16 PM
Site Owner Personal Page Personal Album Photo Albums Project Albums Posts: 11434 Comments: 452 Joined: 03/18/05	When one tank runs out of fuel, remove the fuel line from that tank and plug it into the other FULL tank. This way you know you have enough fuel to make it home.
longbow73	#3  Posted on 05/17/10 - 8:33 PM
Member Personal Page Posts: 45 Comments: 4 Joined: 04/26/10	Add a tee with a valve on both ends.When one runs out close one valve open the other.You can tell when they are getting ready so just open the valve to your second tank and shut the first one.You can also have them both open and then you have a 12 gallon tank.
longbow73	#4  Posted on 05/17/10 - 8:36 PM
Member Personal Page Posts: 45 Comments: 4 Joined: 04/26/10	On second thought also add a filter just south of your tee (to the motor)just to make extra sure.Stainless clamps good fuel tubing and a couple rated valves(Small).
number9	#5  Posted on 05/17/10 - 8:44 PM
Member Posts: 210 Comments: 1 Joined: 03/13/08	Keep it simple as Joe suggested, your current tank should have a quick disconnect fitting on the tank outlet. Use the same type fitting on the new tank. Bill...On the Ogeechee 1984 Outrage 18...Yamaha T50...that's right, 50hp
longbow73	#6  Posted on 05/17/10 - 9:07 PM
Member Personal Page Posts: 45 Comments: 4 Joined: 04/26/10	Have a quick connect on each tank that is run to each valve then an inch or so later the tee.Its simple and you dont have any exposed fittings on the tanks,you can shut the fuel supply down at the the tanks,and just seems neater to me
Tom W Clark	#7  Posted on 05/17/10 - 10:27 PM
Member Personal Page Posts: 4280 Comments: 7 Joined: 09/30/05	I agree with several comments above. Keep It Simple, disconnect the fuel hose from one tank, connect it to the other. This minimizes the hardware and the connectors. A T-valve just complicates things and more dangerously, can be a source of air into the fuel line from the empty tank if the valve is not absolutely fully switched over. A fuel hose sucking air from an empty tank can fry a two stroke outboard.
MW	#8  Posted on 05/18/10 - 2:39 AM
Member Personal Page Posts: 1827 Comments: 10 Joined: 01/08/06	I would just connect to the other tank when the first tank runs empty, or gets low. Remember to keep in mind your boating fuel rule: 1/3 of a tank there, 1/3 of a tank back, and 1/3 of a tank reserve. Matt
longbow73	#9  Posted on 05/18/10 - 9:54 AM
Member Personal Page Posts: 45 Comments: 4 Joined: 04/26/10	Either way will work...I work with valves and junk offshore with my job and I valve up everything...crazy I know I think I like the control or somethin.
RaptorRon	#10  Posted on 05/18/10 - 11:05 AM
Member Posts: 2 Comments: 0 Joined: 02/14/10	Thanks all..........ron