1.2L REVOTRON TWIN CYLINDER CNG ENGINE O CANISTER .......................................................................................................................................... 79 6. ENGINE SYSTEM ................................................................................................................................... 80 A AIR INTAKE SYSTEM ........................................................................................................................ 80 B BLOW BY SYSTEM ............................................................................................................................ 82 C LUBRICATION SYSTEM .................................................................................................................... 83 D EXHAUST SYSTEM ........................................................................................................................... 87 E COOLING SYSTEM............................................................................................................................ 89 F FUEL SYSTEM ................................................................................................................................... 92 7. ENGINE ON VEHICLE SERVICE PROCEDURE ............................................................................ 106 A ENGINE REMOVAL AND INSTALLATION FOR MT VEHICLE....................................................... 106 B AIR FILTER ASSY ............................................................................................................................ 112 C INJECTION SYSTEM ....................................................................................................................... 112 D SPARK PLUG ................................................................................................................................... 115 E EXHAUST SYSTEM ......................................................................................................................... 115 F FUEL SYSTEM ................................................................................................................................. 118 G CNG FUEL SYSTEM ........................................................................................................................ 122 H MOON VALVE REMOVAL / REPLACEMENT PROCEDURE ......................................................... 133 I HIGH PRESSURE LINE ................................................................................................................... 140 J FUEL FLAP SWITCH........................................................................................................................ 141 K COOLING SYSTEM.......................................................................................................................... 142 L REMOVAL OF STARTER MOTOR .................................................................................................. 145 M REMOVAL OF ACCESSORIES ....................................................................................................... 146 8. ENGINE OVEHAULING (ON OVERHAUL STAND) ...................................................................... 151 A ENGINE DIS-ASSEMBLY................................................................................................................. 151 I REMOVAL OF INTAKE MANIFOLD............................................................................................ 151 II REMOVAL OF EXHAUST MANIFOLD........................................................................................ 152 III REMOVAL OF OIL SUMP ........................................................................................................... 153 IV REMOVAL OF SENSORS ........................................................................................................... 155
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