Checking the cylinder head
•
Check that cylinder head surface is not damaged or scratched; replace it if necessary.
•
Check that there are no mineral deposits or rust in the cylinder head water cooled jacket;
remove them if necessary.
•
Use a checking ruler and a thickness gauge positioned crosswise to the ruler to measure
the cylinder head distortion.
Characteristic
Maximum cylinder head distortion
Maximum limit 0.05 mm (0.002 in)
HEAD COVERS CHECK
•
Check that the covers are not dam-
aged or worn; replace the defective
parts if necessary.
Installing the valves
VALVES AND VALVE SPRINGS FITTING - WARNING
CAUTION
THE FOLLOWING PROCEDURE APPLIES TO ALL VALVES AND THEIR COMPONENTS.
•
Lubricate the valve stem and the valve
stems oil seal with recommended oil.
•
Fit the valve, the lower cap (4) and the
valve stem oil guard (3).
•
Fit the spring of valve (6) and the cor-
responding upper cap (5).
NOTE
FIT THE VALVE SPRING WITH THE LARGEST PITCH FAC-
ING UPWARDS. FIT THE SPRING WITH THE COLOURED
END (RED FOR EXHAUST, WHITE FOR INTAKE) FACING
DOWNWARDS.
MXV 450 Engine
ENG - 113
To Next Page
Loading...
