6. CYLINDER HEAD/VALVE
6-13
After the valve seat being ground, coat the valve
seat surface with emery and then slightly press the
ground surface.
Clean up all emery coated onto the cylinder and
valve after grind.
Cylinder Head Reassembly
Lubricate the valve stem with engine oil, and then
insert the valve into valve guide.
Install the new valve stem oil seal.
Install the valve springs and retainers.
Caution
The closed coils of valve spring should face down
to combustion chamber.
Use a valve cotter remove & assembly tool to
press the valve spring, and then remove the
valves.
Caution
To avoid damaging the valve stem and the
cylinder head, in the combustion chamber place a
rag between the valve spring remover/installer as
compressing the valve spring directly.
Special Service Tool:
Valve cotter remove & assembly tool
Tap the valve stems gently with a plastic hammer
to make sure valve retainer and valve cotter is
settled.
Caution
Place and hold the cylinder head on working table
so that can prevent valve from being damaged.
Exhaust valve
Inlet valve
Valve stem seal
Valve spring
Valve spring retainer
alve cotter
To this chapter contents
Valve cotter remove
and assembly tool
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