Chevrolet 10 Series 1968, Service Manual, Page: 394 / 713

SECTION 6M
ENGINE FUEL
CONTENTS OF THIS SECTION
Page Page
C a r b u r e to r s .......................................................................... 6M-1 Fuel Pumps ..........................................................................6M-22
G o v e r n o r s ............................................................................. 6M-7 Special Tools .......................................................................6M-26
A ir Cleaners ....................................................................... 6M-10
CARBURETORS
INDEX
Page
Page
General D e s crip tio n ............................................. Additional A d ju s tm e n ts .............................
Service P r o c e d u r e s ............................................. R e m o v a l.......................................................
P relim in ary C h e c k s .......................................
T e st B efore I n s t a l l a t i o n ..........................
Idle Speed and Mixture A d ju s t m e n t ............. .............
6M-2
GENERAL DESCRIPTION
Various carburetors, designed to meet the particular
requirements of engines, transmission and vehicles are
used; therefore, carburetors that look alike are not al­
ways interchangeable. (Refer to carburetor part number
and/or specifications.') Carburetors for engines with the
A ir Injection Reactor System are designed, particularly
for these engines; therefore, they should not be inter­
changed with or replaced by a carburetor designed for an
engine without the A ir Injection Reactor System.
This section covers removal, installation and adjust­
ment (on engine) of carburetors. Also covered in this
section are maintenance procedures for choke cables,
throttle linkages and fuel filters. For carburetor over­
haul procedures and additional adjustments (bench), refer
to Section 6M of the Overhaul Manual under the carbu­
retor being serviced.
Specifications for carburetors are located in the back
of this manual.
IDLE
MIXTURE
SCREW
SPEED
SCREW
IDLE
M IXTURE
- I D L E
SPEED
Fig . 1 C —Rochester M
F ig . 2 C —Rochester 2 G
CHEVROLET TRUCK SERVICE MANUAL