3-26 ENGINE
CYLINDER HEAD
VALVE AND VALVE SPRING DIASSEMBLY
• Remove the tappets and shims by fingers or magnetic hand.
• Using special tools, compress the valve spring and remove
the two cotter halves
1 from valve stem.
[ 09916-14510: Valve lifter
09916-14521: Valve lifter attachment (24 mm)
09916-84511: Tweezers
• Remove the valve spring retainer
2 and valve spring
3.
• Pull out the valve
4 from the other side.
• Remove the oil seal
5.
• Remove the spring seat
6.
CYLINDER HEAD DISTORTION
• Decarbonize the combustion chambers.
• Check the gasket surface of the cylinder head for distortion
with a straightedge and thickness gauge, taking a clearance
reading at several places indicated.
• If the largest reading at any position of the straightedge
exceeds the limit, replace the cylinder head.
Cylinder head distortion:
Service Limit: 0.10 mm (0.004 in)
Identify the position of each removed part.
Be careful not to damage the tappet sliding surface
with the special tool.
Do not reuse the removed oil seal.
To Next Page
Loading...
