Cylinder head and valve mechanisms
50
Valve spring
Fit the valve spring and face the end with dense thread pitch toward the cylinder head.
Installation of valve split collets
Use a special tool to press the valve spring seat and fit the valve split collet.
Inspection of valve clearance
1. Remove the cylinder head cover (See the timing belt, Disassembly of Cylinder Head
Cover).
2. Confirm that the engine has been cooled down.
3. Measure the valve clearance.
(1) Turn clockwise the crankshaft, enabling the piston to locate on the TDC of the cylinder no.1,
i.e.: the valve sign shall be located as shown in the following figure.
(2) Measure with a feeler the valve clearances of all cylinders as marked in Fig. A.
A larger than B
Cylinder head
Valve spring puller
Pivot
Intake side Exhaust side
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