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CYLINDER HEAD REASSEMBLY
1) Apply molybdenum disulfide oil to the valve stem sliding
surface, and insert the valve into the valve guide.
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Check that the valve moves up and down smoothly.
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• Do not confuse the intake valve with the exhaust valve on
reassembly.
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Valve O.D.
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2) Install the valve spring seat on the cylinder head.
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Apply engine oil to the inner wall of a new valve stem seal,
and install it on the valve guide.
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3) Set the valve spring, and install the valve spring retainer.
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• Do not confuse the intake valve spring with the exhaust
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valve spring.
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Installation direction:
Install the valve spring with the painted side toward the
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valve spring retainer, and with the narrow pitch side of the
coil toward the valve spring seat.
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9-24
32.90 - 33.10 mm
IN
(1.295 - 1.303 in)
28.90 - 29.10 mm
EX
(1.138 - 1.146 in)
134
[1]
VALVE SPRING
SEAT
[3]
[4]
MOLYBDENUM
VALVE
DISULFIDE OIL
[1]
VALVE
SPRING
[4]
VALVE SPRING
[1]
RETAINER
VALVE
SPRING
[2]
VALVE STEM
SEAL
[2]
PAINT
[3]
NARROW
PITCH OF COIL
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