
4. Disassembly, Inspection and Reassembly of Engines.............................. 48
4.1 Complete disassembly and reassembly ................................................................................ 48
4.1.1 Introduction ............................................................................................................................48
4.1.2 Special service tools...............................................................................................................49
4.1.3 Complete disassembly ...........................................................................................................54
4.1.4 Precautions before and during reassembly ............................................................................58
4.1.5 Adjusting operation.................................................................................................................58
4.2 Cylinder Head: Disassembly, Inspection and Reassembly.................................................... 59
4.2.1 Components (2-valve cylinder head)......................................................................................59
4.2.2 Disassembly procedure: .........................................................................................................59
4.2.3 Reassembly procedure: .........................................................................................................59
4.2.4 Servicing points ......................................................................................................................60
4.2.5 Parts Inspection and measurement ........................................................................................63
4.2.6 Valve seat correction ..............................................................................................................66
4.2.7 Valve guide replacement ........................................................................................................67
4.2.8 Valve stem seal replacement..................................................................................................67
4.3 Gear Train and Camshaft ...................................................................................................... 68
4.3.1 Components ...........................................................................................................................68
4.3.2 Disassembly procedure:.........................................................................................................68
4.3.3 Reassembly procedure: .........................................................................................................68
4.3.4 Servicing points ......................................................................................................................69
4.3.5 Parts inspection and measurement ........................................................................................71
4.3.6 Oil seal replacement...............................................................................................................72
4.3.7 Camshaft bushing replacement..............................................................................................72
4.4 Cylinder Block........................................................................................................................ 73
4.4.1 Components ...........................................................................................................................73
4.4.2 Disassembly procedure:.........................................................................................................74
4.4.3 Reassembly procedure: .........................................................................................................74
4.4.4 Servicing points ......................................................................................................................75
4.4.5 Parts inspection and measurement ........................................................................................78
4.4.6 Cylinder bore correction .........................................................................................................87
4.4.7 Piston pin bushing replacement .............................................................................................87
4.4.8 Oil seal replacement (Flywheel housing side) ........................................................................87
5. LUBRICATION SYSTEM .......................................................................... 88
5.1 Lubrication System Diagram ................................................................................................. 88
5.2 Trochoid Pump Components ................................................................................................. 88
5.3 Disassembly(Reverse the below procedure for reassembly)................................................. 89
5.4 Servicing Points..................................................................................................................... 89
5.5 Parts Inspection and Measurement....................................................................................... 90
5.5.1 Trochoid pump inspection and measurement.........................................................................90