D439E Service Manual 2. Engine Mechanical System (D439E)
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16. Remove the cylinder head gasket (1).
CAUTION
When removing the cylinder head gasket, be
careful not to damage the cylinder head and
crankcase.
17. Remove the valve tappet (1).
Disassembly
Rocker and Rocker Shaft bracket Assembly
1. Remove the set bolt from the front rocker shaft
bracket.
2. Remove the front and rear rocker shaft bracket.
3. Remove the rocker assembly.
4. Remove the rocker shaft spring from the rocker
shaft.
5. Remove the rocker shaft bracket No.2, 3 and 4
and then, remove the rocker shaft.
Valve and Cylinder Head Assembly
1. Remove the valve cotter (2) with pushing the
valve spring (1) evenly using the special tool
(09222-83300).
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