PUNCH iCNG SERVICE MANUAL

TABLE OF CONTENTS 1. GENERAL INFORMATION ........................................................................................................................1 A. ENGINE INTRODUCTION ..................................................................................................................1 B. ELECTRONIC FUEL INJECTION CONTROL .....................................................................................3 C. TECHNICAL SPECIFICATION ............................................................................................................4 D. SPECIAL TOOLS .................................................................................................................................5 E. ASSEMBLY CLEARANCES.................................................................................................................9 F. SEALANTS .........................................................................................................................................10 G. LEAKAGE RATES..............................................................................................................................10 H. RECOMMENDED LUBRICANTS & COOLANTS ..............................................................................10 2. TROUBLESHOOTING..............................................................................................................................11 3. CONSTRUCTIONAL AND SERVICE DETAILS.......................................................................................17 A. ENGINE LIFTING ..............................................................................................................................17 B. INTAKE MANIFOLD...........................................................................................................................18 C. CYLINDER HEAD COVER ................................................................................................................20 D. CYLINDER HEAD-A ..........................................................................................................................22 E. CYLINDER HEAD-B ..........................................................................................................................24 F. CYLINDER BLOCK ...........................................................................................................................25 G. OIL SUMP...........................................................................................................................................27 H. MOVING PARTS................................................................................................................................29 ENGINE TIMING ...............................................................................................................................32 I. J. EXHAUST MANIFOLD.......................................................................................................................34 K. CNG FUEL INJECTION EQUIPMENT...............................................................................................35 L. FUEL INJECTION EQUIPMENT........................................................................................................36 M. LUBRICATION PUMP AND COMPONENTS.....................................................................................37 N. AIR INTAKE SYSTEM........................................................................................................................39 O. SPECIAL INSTALLATION...................................................................................................................41 P. ENGINE SUSPENSION.....................................................................................................................44 Q. CNG SYSTEM....................................................................................................................................46 4. ENGINE TESTS AND MAINTENANCE ...................................................................................................48 A. PRELIMINARY INSPECTION ...........................................................................................................48 B. ENGINE TESTS ................................................................................................................................49 ENGINE COMPRESSION TEST ................................................................................................49 I. ENGINE OIL CONSUMPTION TEST :.........................................................................................50 II. 1.2L REVOTRON CNG PHASE-2 ENGINE

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