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Repost 1983 Johnson 140 Fuel Delivery Problems

R

ross

New member
" I have a built in tank that

" I have a built in tank that I was running off of and had the engine connected directly to it with 3/8 hardware. I needed more fuel capacity so I purchased 2 6 gallon portable tanks. I then purchased J/E quick connects for all of them including the built in tank in the hopes that I could easily switch tanks. I took the boat out and after 5/15 mins depending on speed the primer bulb is sucked flat and the engine dies. Obviously insufficient fuel flow but the only thing that has changed is the J/E quick connectors. I checked the usual suspects such as dirty filter or pickup, line restriction or kink or plugged tank vents. All are OK.
My question is, Are the quick connects incapable of flowing sufficient fuel? If so, what type of quick connect could I use?

Thanks "
 
"Ross.... I assume you're

"Ross.... I assume you're also using J/E quick connects at the engine? If so, then the fuel flow through the connector at the engine and the fuel line leading to the fuel primer bulb is okay. It would have to be in order to draw the fuel primer bulb flat.

NOTE: The fuel line must (absolutely) have a inside diameter of 5/16". Any smaller will cause a fuel restriction!

If you're using the same diameter hose and connector from the fuel primer bulb to the tank, then the problem lies elsewhere.

Loosen the fuel cap on the portable tank. If that cures the problem, then obviously a manual vent problem exists.... or the connector is not engaging the small valve pins on the tank housing (if they exist) which enable/control the fuel flow and vent function.

Joe
"
 
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