H. SCHEMATIC DIAGRAM OF CNG INJECTION SYSTEM..................................................................93 CNG FUEL SYSTEM COMPONENTS...............................................................................................98 I. 7. ON VEHICLE SERVICE PROCEDURE.................................................................................................103 A. ENGINE REMOVAL AND REFITMENT ..........................................................................................103 B. AIR FILTER ASSEMBLY REMOVAL ................................................................................................109 C. FUEL RAIL AND INJECTOR ............................................................................................................110 D. SPARK PLUG REMOVAL.................................................................................................................111 E. EXHAUST SYSTEM REMOVAL.......................................................................................................111 F. FUEL SYSTEM.................................................................................................................................116 G. COOLING SYSTEM.........................................................................................................................121 H. COMPRESSOR AND ALTERNATOR BELT REMOVAL...................................................................125 TIMING CHAIN REMOVAL...............................................................................................................126 I. J. WATER PUMP..................................................................................................................................130 K. SOLENOID ......................................................................................................................................131 L. ELECTRONIC THROTTLE BODY...................................................................................................132 M. STARTER MOTOR...........................................................................................................................132 N. ALTERNATOR ..................................................................................................................................133 O. COMPRESSOR................................................................................................................................133 P. INJECTION SYSTEM.......................................................................................................................134 Q. CNG FUEL SYSTEM........................................................................................................................137 R. MOON VALVE REMOVAL / REPLACEMENT PROCEDURE..........................................................145 S. HIGH PRESSURE LINE...................................................................................................................154 T. FUEL FILLER BOWL........................................................................................................................155 U. FUEL FLAP SWICTH .......................................................................................................................157 8. ENGINE OVEHAULING (ON OVERHAUL STAND)..............................................................................159 A. ENGINE DIS-ASSEMBLY.................................................................................................................159 REMOVAL OF INTAKE MANIFOLD ..........................................................................................159 I. REMOVAL OF EXHAUST MANIFOLD ......................................................................................160 II. REMOVAL OF OIL SUMP..........................................................................................................162 III. REMOVAL OF SENSORS.........................................................................................................162 IV. V. REMOVAL OF ACCESSORIES.................................................................................................163 VI. REMOVAL OF TIMING CHAIN..................................................................................................166 REMOVAL OF CYLINDER HEAD AND CAMSHAFT...............................................................168 VII. REMOVAL OF CYLINDER HEAD SUB-ASSEMBLIES...........................................................169 VIII. REMOVAL OF CYLINDER BLOCK SUB-ASSEMBLIES...........................................................171 IX. 1.2L REVOTRON CNG PHASE-2 ENGINE
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