Automatic Choke Adjustment (On Or Oil Vehicle); Fast Idle Cam Adjustment - Jeep J-10 Series 1982 Technical & Service Manual

BEND HERE
TO ADJUST
VACUUM
APPLIED TO
DIAPHRAGM
80448
Fig. U-l 11 Initial Choke Valve Clearance
MAKE
ADJUSTMENT BY
BENDING HERE
HOLD CLOSED
...BY PRESSURE
y>* | ON THERMOSTAT
LTANG
Fig. U-l 12 Fast Idle Cam Adjustment
(4) Adjust by bending fast idle cam link down to
increase distance or up to decrease distance.
(5) Remove choke cover screw and adjust index to
specified notch. Install replacement torque-head screws.
Choke Unloader Adjustment
(1) Hold throttle wide open (fig. 1J-113).
(2) Apply light pressure to choke plate and hold in
closed position.
(3) Measure distance between choke plate and air
horn wall. Refer to Specifications.
(4) Adjust by bending unloader tang. Do not bend
tang so that it binds or interferes with any other part.
ADJUST
BY BENDING
HERE
- ^ - ^ • -•>
FUEL SYSTEMS 1J-57
APPLY LIGHT
PRESSURE HERE
HOLD
THROTTLE
OPEN
60448
Fig. U-113 Choke Unloader Adjustment
Automatic Choke Adjustment (On or Oil Vehicle)
The automatic choke adjustment is made by loosening
the housing cover retaining screws and rotating cover in
the required direction. Rich and lean are indicated by
the arrow on the face of the cover. Refer to Specifica
tions for the correct position. The specified position will
be satisfactory for most driving conditions.
Idle Speed and Mixture Adjustment
Refer to idle speed adjustment procedure outlined in
Chapter 1A—General Service and Diagnosis.
Idle Mixture Adjustment
(1) Install carburetor, fuel pipe, vacuum hoses, etc.
(2) Connect tachometer, start engine and warm to
operating temperature.
(3) Position gear selector: manual—Neutral, auto
matic—Drive. Set parking brake firmly.
(4) Adjust idle speed.
(5) Adjust mixture screw(s) leaner (clockwise) until
perceptible loss of rpm is noted.
(6) Turn mixture screw(s) richer (counterclockwise)
until highest rpm indication is obtained. Do not turn
screw(s) any further than point at which highest rpm is
first obtained. This is referred to as lean best idle.
NOTE: Engine speed will increase above curb idle
speed an amount that corresponds approximately to the
lean drop specification to be obtained in step (7).
(7) As final adjustment, turn mixture screws clock
wise (leaner) to obtain 50 rpm drop in engine speed.
Turn both idle mixture screws in small, equal amounts
until specified drop is achieved.