REMOVAL - TM-10-3930-607-150075

FUEL

construction is also used. This is a method of venting

5. Check to make sure that the boot is in good

the fuel bowl to maintain proper air-fuel mixtures even

condition and that the clamps are tight.

though the air cleaner may become restricted. This

balancing is frequently referred to as an "inside bowl

FUEL SYSTEM

vent." A completely sealed bowl cover is essential in this

type of construction.

GENERAL

B. REMOVAL

The fuel system of truck engines using gasoline as a

fuel consists of the following: a welded sheet metal tank,

1. Disconnect the choke cable, governor link and

mechanical fuel pump and filter and air cleaner. (Fig. 1)

throttle link at the carburetor.

CARBURETOR

2. Disconnect the fuel line. Remove the air inlet

boot and two mounting nuts holding carburetor to the

A. GENERAL (Fig. 3)

manifold.

3. Lift carburetor from the manifold. Then remove

The carburetor is a downdraft unit incorporating both

excessive dirt from carburetor exterior.

primary and secondary venturi. The upper, pressed-in

section of the secondary venturi is sometimes referred

to as the discharge nozzle venturi.

Balanced

Figure 3.

B-38