Originally Posted by
westus1
oh and if the water pipe at the side of the inlet manifold still has the small ballbearing in it then knock it out as it lets the water flow better(yes i have done several million of these)
Its not designed to flow water though...
Its designed to allow air to return to the header tank - hence it being called a Jiggle Valve.
The ball is held in the closed position, acting as a one way valve, by the water. As air circulates and rises to the highest point it will move towards the ball. As the ball will fall through the air water will momentarialy flow and move the air into the header tank.
Alex