No Vent on tank????????

[digimortal777]

I just baught a 15 hp johnson and i noticed today that theres no vent screw on the4 fuiller cap or anywhere on the tank , is this a self venting tank???<br /><br />it looks like an origional OMC tank

 

[Yepblaze]

Re: No Vent on tank????????

Perhaps it's what's called a pressure tank used on the pre 1960 (aprox) motors.

 

[jim dozier]

Re: No Vent on tank????????

Are there 2 pins sticking out of the hose connector on the tank?

 

[digimortal777]

Re: No Vent on tank????????

its just got normal OMC fittings<br />the engine is an '82

 

[Yepblaze]

Re: No Vent on tank????????

Does it have dual line hose?<br /><br />A small pumper button on the tank somewhere?

 

[jim dozier]

Re: No Vent on tank????????

If it has 2 pins sticking out of the tank connector, 1 pin opens the connector for gas, and the other pin is an air vent so when you disconnect the hose neither gas or air gets in or out. When you connect the hose and push the 2 pins in gas is open and so is air.

 

[wilde1j]

Re: No Vent on tank????????

digimortal777, the OMC OEM tanks (non-pressure type for single hose) did not require a separate vent. I have a 2.5 and a 6 gallon version and both have black metal self venting caps. Typically, non-OMC tanks (metal and plastic) often have a vent screw in the cap.