Chevrolet 1977 10 Series, Руководство по ремонту, Страница: 204 / 468

6C-10 OVERHAUL MANUAL
Fig. 6 C -2 7 ~ R e m o v in g Pum p R eturn S p rin g
Fig. 6 C -29 --P u m p D is c h a rg e "T " R eta in e r
5. The idle m ixture needles have been adjusted and set
at the factory and capped, to prevent excessive adjustment
in the field. However, the carburetor has limited idle m ixture
adjustm ent. If it is necessary to remove the idle mixture
needles for cleaning purposes or if they are defective, the
following procedure should be used:
Using a pair of side cutter pliers, clip off the limit tang
on the limiter cap, and unscrew the idle mixture screw and
spring from throttle body. If new idle m ixture needles are
installed, no plastic limiter caps are required. If the original
idle m ixture needles had to be removed, install the idle
mixture needle and springs into throttle body as described
under Assembly. N o further disassembly of the throttle body
is necessary.
CAUTION:
No attem pt should be made to remove
the throttle valves or shaft as it may be impossible
to reassemble the throttle valves correctly in
relation to the idle discharge orifices.
CLEANING AND INSPECTION
The carburetor parts should be cleaned in cold
immersion type cleaner.
CAUTION:
The electric solenoid, rubber parts,
plastic parts, diaphragms, pump plungers, should
not be p u t in immersion type cleaner as they will
swell, harden or distort.
P U M P RETURN
S P R IN G
"T " RETAINER
Fig. 6C-28--Venturi Cluster Assem bly
Fig. 6C -30~T hrottle Body A tta ching Screws