Manual

Engine Maintenance And Servicing Manual
【8】. Valve mechanism and cylinder head removal, check and installation
1.Valve mechanism for 478 and 480 engine：
Rocker arm-8
Valve locking piece-16
Rocker arm seat-8
Fit clearance with hole
0.023/0.065
Rocker arm stud-8
Tightening torque 18-23Nm
Upper Valve spring seat -8
Valve spring -8
Valve oil seal spring seat assy-8
Assembly before valve oil seal
spring and valve installation
Rocker arm seat washer-8
hydraulic lifting rod-8
Rock arm nut-8. tightening torque
25-29n.m
Exhaust valve-4. fit clearance between left valve
stem and valve guide is 0.046-0.095
Intake valve-4. fit clearance between valve
stem and valve guide is 0.02-0.069
Fig.19
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