Mitsubishi S3Q2 Service Manual page 49

DISASSEMBLY OF BASIC ENGINE
1. Disassembling and inspecting cylinder
head and valve mechanism ............5-2
1.1 Removing rocker shaft assembly............. 5-3
1.2 Disassembling rocker shaft assembly...... 5-3
1.3 Removing cylinder head assembly .......... 5-3
1.4 Removing valve and valve spring ............ 5-4
1.5 Removing valve stem seal ....................... 5-4
1.6 Cleaning cylinder head bottom surface.... 5-4
1.7 Measuring piston protrusion..................... 5-5
2. Disassembling and inspecting
flywheel ...........................................5-6
2.1 Removing flywheel................................... 5-7
2.2 Removing oil seal case ............................ 5-7
2.3 Removing rear plate................................. 5-7
3. Disassembling and inspecting timing
gear, camshaft and oil pan..............5-8
3.1 Removing crankshaft pulley..................... 5-9
3.2 Removing timing gear case ..................... 5-9
3.3 Measuring timing gear backlash .............. 5-9
3.4 Measuring idler gear end play................ 5-10
3.5 Removing idler gear............................... 5-10
3.6 Measuring camshaft end play ................ 5-10
3.7 Inverting crankcase................................ 5-10
3.8 Removing oil pan and oil pan gasket ..... 5-11
3.9 Removing oil pump ................................ 5-11
3.10 Removing camshaft ............................... 5-11
3.11 Removing front plate.............................. 5-11
4. Disassembling and inspecting piston,
connecting rod, crankshaft and
crankcase......................................5-12
4.1 Laying crankcase on its side.................. 5-13
4.2 Measuring connecting rod end play ....... 5-13
4.3 Removing connecting rod cap ............... 5-13
4.4 Removing carbon deposits from the upper
part of cylinder ....................................... 5-14
4.5 Pulling out piston.................................... 5-14
4.6 Removing piston ring ............................. 5-14
4.7 Removing piston pin .............................. 5-14
4.8 Uprearing crankcase.............................. 5-15
4.9 Measuring crankshaft end play .............. 5-15
4.10 Removing main bearing cap .................. 5-15
4.11 Removing crankshaft ............................. 5-16
5-1