Yanmar 4JH4E - Page 8

3.2 Quick reference chart for troubleshooting ........................................................... 101
3.3 Troubleshooting (Concerning engine and fuel injection equipment) ................... 117
3.4 Troubleshooting by measuring compression pressure ....................................... 120
4. Disassembly and reassembly ...................................................................................... 122
4.1 Disassembly and reassembly precautions ......................................................... 122
4.2 Disassembly and reassembly tools .................................................................... 123
4.2.1 General hand tools.................................................................................. 123
4.2.2 Special hand tools................................................................................... 125
4.2.3 Measuring instruments............................................................................ 131
4.2.4 Other material ......................................................................................... 136
4.3 Disassembly and reassembly ............................................................................. 138
4.3.1 Disassembly............................................................................................ 138
4.3.2 Reassembly ............................................................................................ 156
5. Inspection and servicing of basic engine parts ............................................................ 175
5.1 Cylinder block ..................................................................................................... 175
5.1.1 Inspection of parts................................................................................... 175
5.1.2 Cleaning of oil holes................................................................................ 175
5.1.3 Color check procedure ............................................................................ 176
5.1.4 Replacement of cup plugs....................................................................... 177
5.1.5 Cylinder bore measurement.................................................................... 178
5.2 Cylinder head ...................................................................................................... 179
5.2.1 Inspecting the cylinder head ................................................................... 181
5.2.2 Valve seat correction procedure ............................................................. 182
5.2.3 Intake/exhaust valves, valve guides........................................................ 184
5.2.4 Valve springs........................................................................................... 188
5.2.5 Assembling the cylinder head ................................................................. 190
5.2.6 Measuring top clearance......................................................................... 191
5.2.7 Intake and exhaust rocker arms.............................................................. 192
5.2.8 Adjustment of valve clearance ................................................................ 193
5.3 Piston and piston pins ......................................................................................... 194
5.3.1 Piston ...................................................................................................... 195
5.3.2 Piston pin ................................................................................................ 196
5.3.3 Piston rings ............................................................................................. 197
5.4 Connecting rod ................................................................................................... 200