Slow (Curb) Idle Speed Adjustment Procedure - Jeep J-10 Series 1982 Technical & Service Manual

(0.8 mm). Retaining clip is "dished." Install clip on rod
with outward bend of self-locking clip facing end of rod.
Ensure that clip fully engages rod and that it is not
distorted.
CAUTION: Use care when tightening idle speed sole
noid retaining nut with wrench to avoid damaging vac
uum break plunger.
(40) If removed, install idle speed solenoid, lock
washer and retaining nut on primary side vacuum
bracket. Tighten nut securely. Bend back two retaining
tabs on lockwasher to fit in slots in bracket.
(41) Rotate vacuum break bracket and insert end of
vacuum break rod into inner slot of vacuum break dia
phragm plunger and end of air valve rod into outer slot
of vacuum break diaphragm plunger. Install bracket
over locating lugs on air horn with taper-seat screw in
air horn and screw with lockwasher in throttle body.
Tighten screws securely.
(42) Insert pump rod in hole in pump lever by rotat
ing lever. Install retaining screw in pump lever, then
install washer. Holding down on pump plunger stem,
install pump lever on air horn. Ensure shoulder on
screw seats in hole in lever and washer is between lever
and air horn casting. Tighten screw securely.
SERVICE ADJUSTMENT PROCEDURES
Refer to Service Adjustment Procedures within Model
2SE Carburetor section and to General Service and Di
agnosis—Chapter 1A.
Float Level Measurement
NOTE: Thefloat level should bedetermined beforedis
assembling a carburetorfor overhaul if a malfunction
ingfloat is suspected ofaffecting engine performance.
NOTE: The fuel level in the carburetor bowl can be
affected byfuel pump pressure as well as by an improp
erly adjus ted float.
To determine if the float requires adjustment, meas
ure the float level according to the following procedure.
(1) Remove vent stack screws and vent stack.
(2) Remove air horn screw located adjacent to vent
stack.
WARNING: Use extreme caution when engine is oper
ating. Do not stand in direct line with fan. Do not put
hands near pulleys, belts or fan. Do not wear loose
clothing.
(3) With engine at idle speed and choke valve com
pletely open, carefully insert float gauge in air horn
FUEL SYSTEMS 1J-45
screw hole and vent hole. Allow gauge to rest freely on
float.
NOTE: Use Gauge J-9789-186 (white) for model E2SE
carburetor.
CAUTION: Do not press down on gauge because en
gine may flood or float may be damaged.
(4) With gauge at eye level observe mark on gauge
that aligns with top of casting at vent hole. Float level
should be within ± 1.5 mm (± 0.06 inch) of float level
specification. Refer to Specifications.
(5) Remove float gauge.
(6) If float level is not within specification, remove
carburetor air horn and adjust float level. Refer to Float
Level Adjustment.
(7) If float level is within specification, install air
horn screw, vent stack and vent stack screws.
Idle Speed Adjustments
The engine and related systems must be performing
properly before initiating the idle speed adjustments.
Precautions and General Information.
•Place manual transmission in neutral. Set the
parking brake firmly and do not accelerate the
engine.
• Ensure the engine is at normal operating temper
ature before adjusting the idle speed.
• Perform the procedure with the air cleaner installed
or with air cleaner removed and associated vacuum
hoses plugged, choke open and deceleration valve
supply hose plugged.
• Do not idle the engine more than three minutes at a
time.
•If the idle speed adjustment procedure requires
more than three minutes, operate the engine at 2000
rpm for one minute.
• Ensure the ignition timing is correct before adjust
ing idle speed.
•Use extreme caution around fan, belts and other
moving parts when the engine is operating. Do not
wear loose clothing. Do not stand in direct line with
the fan blades.
Slow (Curb) Idle Speed Adjustment Procedure
(1) Disconnect and plug purge vacuum hose at va
por canister.
(2) Connect dwell meter to single light blue wire
taped to mixture control solenoid wires at carburetor.
Set dwell meter on "6-cylinder" scale. Connect tachome
ter at distributer side of filter.