The two then thoroughly mix and enter the combustion chamber together as the air valve F is opened.
In the cab ahead the handle of the air valve was slammed into the big notch.
Next pull round till the crank is in the position for the air valve opening, and observe that it is set correctly.
It will be noticed that a metering pin or needle valve opens the jet when the air valve opens.
As it was, he turned the air valve automatically, and listened nervously as the stale air hissed out and the fresh air hissed in.
The air valve is first opened or the spring tension reduced to a point where the engine misfires or pops back in the carburetor.
A turn of the air valve then sent the sunken freight boat to the surface.
Carefully observe if the air valve is not tight in sleeve of gas valve.
Here you have to open the air valve yourself and let out the air that accumulates in the radiator.
Mortlake plunged his hands in among the machinery and readjusted the air valve of the carburetor.