Anti-siphon valve

[Captain Don]

I have a 1988 340 Sundance, I am told I may have a problem with the anti-siphon valve for my Port fuel tank. Where exactly is this valve located? I know the tank is under the aft cabin. Or does this valve even exist on this boat.

 

[SCORPIO]

That will be screwed into the tank pick up tube on top of the tank. The fuel line will be attached to it, looks like a barbed hose fitting but has a spring loaded ball valve inside it.

 

[Captain Don]

Thank you for your reply, carb out for rebuild. Will let you know what happens.

 

[Captain Don]

Carb came back, same problem. Discovered the vacuum disc which controls the big flapper in the carb was not working. I was lucky to find one to replace it. Once I replaced it, power was back to normal. Simple problem, but it took a lot of trial and error to isolate it. Thank you again for your reply. Don