Starboard Engine will Not start - Fuel Issue but not sure what

[pdibartolo]

All has been going well until I let the boat sit for two weeks. Have plenty of gas in the tanks. The Engine turns over fine and has a nice spark but no gas to the carb. Pulled the fuel line from carb. and cranked the engine, no Gas coming out.

So what I need to determine is what is stopping the gas from flowing between the tank and the carb.

Port engine runs perfect.

The setup I have is twin inboard Mercruiser 305's. Attempted to find fuel system diagrams online but was unsuccessful.

Not sure if these engines have electric fuel pump or engine driven.

I do have an inline fuel water separator, the filter was replaced two years ago.

Thanks for any help on this one.

 

[Seven8385]

Re: Starboard Engine will Not start - Fuel Issue but not sure what

If it's electric looks about the size of an ignition coil with the fuel line going through it between the fuel filter and carb. If it's mechanical it usually is right by the fuel water separator. What are he specs on the engine.

 

[littlebookworm]

Re: Starboard Engine will Not start - Fuel Issue but not sure what

What is your "fuel tank to engine" fuel line setup? Do your engines feel from the same tank and one main fuel line or from two separate fuel lines going to one or two tanks? If it's separate lines to the tank(s), disconnect the line which feels the engine which doesn't start. Blow through it to see it's clear. It probably is, but you should check it. Remove the anti-siphon valve at the tank. (It looks like a barbed fitting.) Check that the checkball moves. If not, replace the fitting. If it does, You probably have some dirt stuck in the pickup in the tank. Remove the fuel pickup and check it. Hope this helps. Hy

 

[Bondo]

Re: Starboard Engine will Not start - Fuel Issue but not sure what

So what I need to determine is what is stopping the gas from flowing between the tank and the carb.
I do have an inline fuel water separator, the filter was replaced two years ago.

Ayuh,... 2 Years is a lifetime with today's gasoline,...
I'd start there.....

Dump it into a container, so you can look for water in the gas...