water pressure relief valve

[bzz]

On a 1998 Force 120 where is this located? Could this be my problem with buzzer going off at high rpms?

 

[WillyBWright]

Re: water pressure relief valve

It's the thermostat. It's spring loaded and comes off it's seat when the pressure gets high enough allowing freeflow. They rarely stick, but can leak. Your problem is far more likely to be down in the water pump.