What causes a fuel line to crack on a boat?
On any line older than 5 years, the sun causes the bulb, rubber end connector inserts, and fuel line to age, shrink, harden and crack, leading to tiny air leaks that prevent the fuel pump from pulling gas into the motor, especially at idle.
Why do I have problems with my fuel line?
Ethanol gas causes more fuel line problems but using ethanol-free gas is not a guarantee you won’t have problems. New hoses have an impermeable liner to keep ethanol from degrading the other hose material. That liner can delaminate from the outer hose and cause blockages.
Why is ethanol bad for the fuel line?
Ethanol is a problem for a lot of reasons, not the least of which is fuel line decomposition, including delamination. Some of those little pieces can end up clogging jets leading to carb rebuilds. Phase separation leaves globs of ethanol in the fuel that the engine cannot run on.
Why does my outboard motor not start up?
We’ve had problems with two hoses in the past three years. A blocked outboard fuel line prevents fuel from getting to the motor. It generally starts with a partial blockage, where playing around with the fuel hose and pumping the primer bulb will get the motor to start or keep it running. But blockages don’t cure themselves.
Ethanol gas causes more fuel line problems but using ethanol-free gas is not a guarantee you won’t have problems. New hoses have an impermeable liner to keep ethanol from degrading the other hose material. That liner can delaminate from the outer hose and cause blockages.
What are the symptoms of a bad fuel return hose?
Another symptom of a potential problem with the fuel return hose is carburetor flooding. If the fuel return hose becomes blocked or kinked it may cause the carburetor to flood from excessive fuel or pressure buildup. A flooded carburetor may cause engine stalling and hard starting until it is cleared, or enough fuel has evaporated. 3. Fuel leaks
Why is my gas tank not filling properly?
This causes the tank to not get filled properly and the inner hose can get caught in the fuel sender causing wrong readings. If you’d like to get this fixed, consider YourMechanic, as a certified technician can help you service your fuel filler neck and ensure that your fuel gauge functions normally. Good luck.
On any line older than 5 years, the sun causes the bulb, rubber end connector inserts, and fuel line to age, shrink, harden and crack, leading to tiny air leaks that prevent the fuel pump from pulling gas into the motor, especially at idle.
What causes mercury 4 stroke fuel line problems?
If you have a Mercury EFI 4 stroke, I recommend you get to know the symptoms of FSM problems and dont let the shop BS you around installing filters and replacing fuel line bulbs. This isnt caused by ethanol, but by cheap OEM sourcing by Merc. Next time, it’ll be a Honda for me.
What causes a blockage in the fuel line?
We’ve had problems with two hoses in the past three years. A blocked outboard fuel line prevents fuel from getting to the motor. It generally starts with a partial blockage, where playing around with the fuel hose and pumping the primer bulb will get the motor to start or keep it running.