Segway VILLIAN SSV Series Service Manual page 99

CYLINDER HEAD, CYLINDER, PISTON CYLINDER HEAD, CYLINDER, PISTON
Cylinder head inspection.........................................................................................3-5-25
Check the cylinder head deformation.....................................................................3-5-25
Remove the intake pipe assembly...........................................................................3-5-26
Install the intake pipe assembly...............................................................................3-5-26
Disassemble the thermostat and water temperature sensor....................................3-5-26
Install thermostat and water temperature sensor....................................................3-5-26
Thermostat check....................................................................................................3-5-27
Disassemble the spark plug.....................................................................................3-5-27
Install spark plug......................................................................................................3-5-27
Remove the valve....................................................................................................3-5-28
Valve guide / valve inspection..................................................................................3-5-29
Combustion chamber cleaning ................................................................................3-5-30
Seat ring repair.........................................................................................................3-5-31
Seat ring inspection................................................................................................3-5-31
Seat ring repair (valve grinding)..............................................................................3-5-32
Cylinder head assembly..........................................................................................3-5-34
Cylinder block and piston..........................................................................................3-5-35
Cylinder block removal............................................................................................3-5-35
Cylinder block inspection.........................................................................................3-5-35
Disassemble the piston............................................................................................3-5-36
Piston measurement................................................................................................3-5-37
Measure the gap of the piston ring groove..............................................................3-5-38
Measure the piston pin............................................................................................3-5-39
Measure the closed gap of the piston ring...............................................................3-5-39
Connecting rod measurement..................................................................................3-5-39
Piston ring installation..............................................................................................3-5-40
Piston connecting rod assembly...............................................................................3-5-40
Cylinder block assembly..........................................................................................3-5-41
Cylinder pressure measurement..............................................................................3-5-42
3-5-2