2.8L Sparkplug wire diagram
4.3L Sparkplug wire diagram

 
GASOLINE ENGINE TUNE-UP SPECIFICATIONS
Year
Engine 
ID/VIN 
Engine Displacement Liters (cc) 
Spark Plug 
_________
Gap (in.)
Ignition Timing (deg.) 
_________________ 
MT                     AT
Fuel Pump (psi)
Idle Speed (RPM) 
________________
MT                 AT
Valve Clearance 
______________
In.                 Ex.
1982 A 1.9 (1949) 0.040 6B                       6B 3.0 800                 900 0.006         0.010
B 2.8 (2835) 0.040 6B                     10B 7.0 1000               750 Hyd.            Hyd.
1983 A 1.9 (1949) 0.040 6B                       6B 3.0 800                 900 0.006         0.010
Y 2.0 (1990) 0.035 12B                    12B 5.0 750                 700 Hyd.            Hyd.
B 2.8 (2835) 0.040 6B                     10B 7.0 1000               750 Hyd.            Hyd.
1984 A 1.9 (1949) 0.040 6B                        6B 3.0 800                 900 0.006         0.010
Y 2.0 (1990) 0.035 12B                    12B 5.0 700                 750 Hyd.            Hyd.
B 2.8 (2835) 0.040 6B                      10B 7.0 1000               750 Hyd.            Hyd.
1985 A 1.9 (1949) 0.040 6B                        6B 4.0-6.5 800                 900 0.006         0.010
E 2.5 (2474) 0.060 *                         * 9-13 *$                    *$ Hyd.            Hyd.
B 2.8 (2835) 0.040 6B                      10B 4.0-6.5 750                 650 Hyd.            Hyd.
1986 E 2.5 (2474) 0.060 *                          * 9-13 *$                    *$ Hyd.            Hyd.
R 2.8 (2835) 0.045 *                          * 9-13 *$                    *$ Hyd.            Hyd.
1987 E 2.5 (2474) 0.060 *                          * 9-13 *$                    *$ Hyd.            Hyd.
R 2.8 (2835) 0.045 *                          * 9-13 *$                    *$ Hyd.            Hyd.
1988 E 2.5 (2474) 0.060 *                          * 9-13 *$                    *$ Hyd.            Hyd.
R 2.8 (2835) 0.045 *                          * 9-13 *$                    *$ Hyd.            Hyd.
Z 4.3 (4293) 0.045 *                          * 9-13 *$                    *$ Hyd.            Hyd.
1989 E 2.5 (2474) 0.060 *                          * 9-13 *$                    *$ Hyd.            Hyd.
R 2.8 (2835) 0.045 *                          * 9-13 *$                    *$ Hyd.            Hyd.
Z 4.3 (4293) 0.045 *                          * 9-13 *$                    *$ Hyd.            Hyd.
1990 E 2.5 (2474) 0.060 *                          * 9-13 *$                    *$ Hyd.            Hyd.
R 2.8 (2835) 0.045 *                          * 9-13 *$                    *$ Hyd.            Hyd.
Z 4.3 (4293) 0.045 *                          * 9-13 *$                    *$ Hyd.            Hyd.
1991 A 2.5 (2474) 0.060 *                          * 9-13 *$                    *$ Hyd.            Hyd.
E 2.5 (2474) 0.060 *                          * 9-13 *$                    *$ Hyd.            Hyd.
R 2.8 (2835) 0.045 *                          * 9-13 *$                    *$ Hyd.            Hyd.
Z 4.3 (4293) 0.045 *                          * 9-13 *$                    *$ Hyd.            Hyd.
1992 A 2.5 (2474) 0.060 *                          * 9-13 *$                    *$ Hyd.            Hyd.
R 2.8 (2835) 0.045 *                          * 9-13 *$                    *$ Hyd.            Hyd.
Z 4.3 (4293) 0.035 *                          * 9-13 *$                    *$ Hyd.            Hyd.
1993 A 2.5 (2474) 0.060 *                          * 9-13 *$                    *$ Hyd.            Hyd.
R 2.8 (2835) 0.045 *                          * 9-13 *$                    *$ Hyd.            Hyd.
Z 4.3 (4293) 0.035 *                          * 9-13 *$                    *$ Hyd.            Hyd.
1994 4 2.2 (2189) * #                          # 41-47 *$                    *$ Hyd.            Hyd.
W 4.3 (4293) 0.035 *                          * 55-61 *$                    *$ Hyd.            Hyd.
Z 4.3 (4293) 0.035 *                          * 9-13 *$                    *$ Hyd.            Hyd.
Note:  The Vehicle Emission Control information label often reflects specification changes made during production.  The label figures must be used if they differ from those in this chart.


DIESEL ENGINE TUNE-UP SPECIFICATIONS
Year  Engine 
ID
VIN		 Engine Displacement Liters (cc)  Valve Clearance 
_______________
In.                Ex.		 Intake Valve Opens (deg.) Injection Pump Setting (deg.) Injection Nozzle
Pressure (psi)
_____________________ 
New                         Used		 Idle Speed (RPM)  Cranking Compression Pressure (psi)
1983 S 2.2 (2238) 0.016%  0.016% 16B 15B NA                              1493 800 441@200 RPM
1984 S 2.2 (2238) 0.016%  0.016% 16B 15B NA                              1493 800 441@200 RPM
1985 S 2.2 (2238) 0.016%  0.016% 16B ^ NA                              1493 800 441@200 RPM
* - Refer to underhood label    B - Before TDC (Top Dead Center)    # - No timing adjustments are possible on the distributorless EI system
MT - Manual Transmission     AT - Automatic Transmission     Hyd. - Hydraulic     NA - Not Available     ^ - Federal: 15B California: 13B
$ - Idle speed on these engines is computer controlled.  No periodic adjustments are necessary or possible    % - Adjust cold

If you have any information that is not listed and would like to contribute, please send E-mail to Hellcat1@S-Series.Org and I will add it.