Chevrolet Light Duty Truck 1973 Service Manual page 449

3. Install carburetor over manifold studs or holes.
4. Start vacuum and fuel lines at carburetor.
5. Install attaching nuts and/or bolts and tighten to
specified torque shown.
. Tighten fuel lines and install vacuum lines securely.
6
7. Connect and adjust accelerator and TV linkage.
. Connect C.E.C. Valve (L-
8
attach vacuum lines.
9. Connect idle stop wiring connector to solenoid.
. Connect choke coil rod.
10
11. Install air cleaner, adjust curb idle and low idle
speeds per decal. (See specifications for C.E.C. valve
adjustment, idle stop solenoid adjustment and idle
mixture adjustment; also, "Additional external
settings and adjustments".)
FUEL FILTER MAINTENANCE
1. Disconnect fuel line connection at inlet fuel filter
nut.
2. Remove inlet fuel filter nut from carburetor with a
box wrench or socket.
3. Remove filter element and spring (fig. K4).
Fig. K 4--F uel F ilte r (P a p e r-T y p e ) (T y p ic a l)
) electrical wiring and
6
4. Check paper element by blowing on fuel inlet end.
If filter does not allow air to pass freely, replace
element. No attempt should be made to clean filters.
NOTE: Element should be replaced if
plugged or if flooding occurs. A plugged filter
will result in a loss of engine power or rough
(pulsating) engine feel, especially at high
engine speeds.
5. Install element spring, and install element in
carburetor. Bronze filters must have small section of
cone facing out.
. Install new gasket on inlet fitting nut and install nut
6
in carburetor and tighten securely.
7. Install fuel line and tighten connector.
AUTOMATIC CHOKE COIL ASSEMBLIES
Refer to "External A djustm ents" for choke coil
adjustment procedures and typical installed views.
Choke Coil Replacement
In-Line Engines (Fig. K l)
NOTE: The following procedures refer to all
IN-LINE engines.
1. Remove air cleaner and disconnect choke rod upper
clip.
2. Remove bolt attaching choke coil to manifold, and
remove choke coil and choke rod as an assembly.
3. Disconnect choke rod from choke coil.
4. Connect choke rod to new choke coil and install
assembly on manifold.
E N G I N E FUEL 6 M - 2 5
LIGHT DUTY TRUCK SERVICE MANUAL