Fast Idle Speed Adjustment Procedure - Jeep J-10 Series 1982 Technical & Service Manual

1J-46 FUEL SYSTEMS
NOTE: Use a tachometer with an expanded scale ofkOO
to 800 or 0 to 1000 rpm. Inspect tachometer periodically
to ensure accuracy within two percent.
(3) Set parking brake firmly. Manual transmission
in neutral position.
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.
(4) Start engine and warm to normal operating
temperature. Dwell meter pointer should now be os
cillating. Pointer should be generally located between 10
and 50 degrees with maximum sweep of pointer os
cillation covering a segment of 15 degrees. If not, refer to
C4 System Operational Test.
(5) Open throttle momentarily to ensure idle speed
solenoid is fully extended. Adjust idle speed by turning
solenoid idle adjustment screw to obtain specified idle
speed. Refer to Specifications.
(6) Disconnect solenoid wire. Adjust curb idle to 500
rpm.
(7) Connect solenoid wire.
(8) Stop engine. Disconnect and remove dwell meter
and tachometer. Install air cleaner and connect vacuum
hoses, if removed. Connect canister purge vacuum hose
and deceleration valve supply hose.
Model E2SE Carburetor Idle Speed
Adjustment Specifications
Transmission
RPM
Manual 900(1100)®
®ldlespeed with solenoidde-energized is 500 rpm. 90984
Fast Idle Speed Adjustment Procedure
(1) Connect tachometer at distributor side of filter.
(2) Set parking brake. Place manual transmission
in neutral position.
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) Start and warm engine to normal operating
temperature.
(4) Disconnect and plug EGR valve vacuum hose.
(5) Open throttle slightly and rotate fast idle cam
until screw is against highest step of cam.
(6) Adjust fast idle speed to specified rpm.
(7) Quickly open throttle slightly and allow engine
to return to slow idle speed.
(8) Connect EGR valve vacuum hose.
Idle Mixture Adjustment
Refer to Carburetor Model E2SE Idle Mixture Adjust
ment procedure listed within Feedback System section.
Idle mixture adjustment should not normally be nec
essary; only after carburetor overhaul and if original
mixture screw adjustment has been altered.
Choke Mechanism Service
Refer to Service Adjustment Procedures within Model
2SE Carburetor section.
SPECIFICATIONS
Model E2SE Carburetor Specifications
List Number 17082369
Pri. Throttle Bore
35 mm
Sec. Throttle Bore
46 mm
Pri. Venturi Diameter
28 mm
Sec. Venturi Diameter Var. Air Valve
Fuel Inlet Seat Diameter
2.36 mm
Idle Bypass
1.78 mm
Idle Tube
0.80 mm
Side Idle Air Bleed
1.17 mm
Lower Idle Air Bleed
1.32 mm
Spark Port Size
1.14 mm
X
3.84 mm
Main Jet
No. 4
(1.752 mm)
Pri. Metering Rod. No. N/A
Sec. Metering Rod No.
DX12905-37
Top Well Bleed 0.90 mm
Side Well Bleed
1.02 mm
Power Valve Timing N/A
Accelerator Nozzle Diameter
0.50 mm
90736
4-Cylinder
Engine
Carburetor
Number
Float
Level
mm (inches)
Pump
Stem Height
mm (inches)
Fast
Cam Adj.
2nd Step
Fast Idle
Speed
±100 rpm
Air
Valve
Link?
Vac.
Break
Pri.
Unloader
Choke
Secondary
Lockout
Choke Coil
Lever Plug
Gauge
CJ
(Calif, only)
Man.
Trans.
17082389
4.3 (0.169) 3.25 (.128)
18°
2400
2° 19°
34°
TR
1.27-2.03 mm
(.050-.080 in.)
1.27-2.03 mm
(.050-.080 in.)
G> Maximum Degree Setting
TR Tamper Resistant
90735
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