Pontoon Boat & Deck Boat Forum

My built in gas tank has been giving me fits. For over a year I have fought to keep my fuel line in prime. I blamed it on adding fuel water separator. Replaced fuel lines twice, primmer bulbs also a few times and still had problems.
Well I decided I must have an obstruction in gas take pick up so I removed gas lines and using compressor blow tip shot some air into the connector where I clamp fuel line.
BINGO I found the culprit, The connector has a check valve inside it and it was sticking. It would let fuel through then stick. I took the POS off and replaced with a connector without check valve. 3 pumps and ball is hard and stays that way.

So be aware of that if you ever have the same issues.

Are you talking about the aluminum connector on the tank ? If so, that's very common. The on-tank check valve on my old Proline did the same thing once. It seems Moeller tanks have issues with bad check valves.

Thats it Ed, I never thought to look there before

could that cause the engine not to hit the proper RPM's?

I don't know for sure but I would try it before carb work

Sometimes when they start to go bad they make a little noise. Hard to explain, but you shouldn't hear anything normally. If you have a portable tank, hook it up to the motor and run it. If it runs better, the valve could be bad or a restriction in the line itself.

lakerunner wrote: 3 pumps and ball is hard and stays that way.

So be aware of that if you ever have the same issues.

Mine used to do that.

I knew that one couldnt be pass up...

Parasympathetic wrote:

lakerunner wrote: 3 pumps and ball is hard and stays that way.

So be aware of that if you ever have the same issues.

Mine used to do that.

shit, I can't even make 3 pumps. Somehow, I got the name "2 pump chump"