2 motors, 1 fuel tank: Possible?

[merc20076]

This year, it's time to get rid of the metal gas tanks for a brand new 6.6 gallon plastic tank. I have my main old 40 HP Lark 8 + a 4.5HP for trolling that I use alot. Is it possible to have only 1 tank for both o/b and do a gas line with a splitter? 2tanks + the battery makes to much weight at the back of the boat and the boat has a hard time to keep a moderate cruising speed. Could this cause some air in gas lines?

 

[etracer68]

Re: 2 motors, 1 fuel tank: Possible?

I do it, but I use a filter/water separator, with shut off valves on each line at the outlets.

 

[tmcalavy]

Re: 2 motors, 1 fuel tank: Possible?

I run two 57 OMC Big Twin 35's on the back of my boat...9 gal. fuel tank in the front, under the bowskirt to balance the weight. Fuel line with bulb close to dash runs from this tank down under the port gunwhale to the splashwell, simple brass T splits the line into two lines...each with it's own primer bulb...separate line to each motor...three primer bulbs prevents back siphoning. No problems yet...just make sure both motors get the same fuelil mix.

 

[Home Cookin']

Re: 2 motors, 1 fuel tank: Possible?

If you don't like simply switching the hose when you switch motors, I'd go with the T with shut-off valves. Or a 3 gallon tank for the troller.

 

[Chris1956]

Re: 2 motors, 1 fuel tank: Possible?

You are only going to run one motor at a time right? Just switch the fuel line over. Both have quick connects right? The other method is not worth the hassle and $.

 

[merc20076]

Re: 2 motors, 1 fuel tank: Possible?

Gas tank in the front, that would be a good possibility since there is lot of space underneath but is my Lark40HP will have a hard time receiveing is gas? I own a 14' and a 12' fuel hose is much more expensive. Still have a couple of weeks to think, I am working on the motor. To start my fishing season in 2 weeks, I have my SIB!

 

[F_R]

Re: 2 motors, 1 fuel tank: Possible?

Fuel line length is not a problem. Consider the pounding anything you put up front gets, though. How 'bout mid-ship?