5-25
VALVES AND VALVE SPRINGS
ENG
NOTE:
Replacement steps:
S
Remove the valve guide with a valve guide
remover
1
.
S
Install the new valve guide with a valve guide
installer
2
and valve guide remover
1
.
S
After installing the valve guide, bore the
valve guide with a valve guide reamer
3
to
obtain the proper valve-stem-valve-guide
clearance.
After replacing the valve guide, reface the valve
seat.
Valve guide remover:
Intake (ø4)
90890-04111, YM-04111
Exhaust (ø4.5)
90890-04116, YM-04116
Valve guide installer:
Intake (ø4)
90890-04112, YM-04112
Exhaust (ø4.5)
90890-04117, YM-04117
Valve guide reamer:
Intake
90890-04113, YM-04113
Exhaust
90890-04118, YM-04118
3. Eliminate:
S
Carbon deposits
(from the valve face and valve seat)
4. Inspect:
S
Valve face
Pitting/ wear
!
Grind the valve face.
S
Valve stem end
Mushroom shape or diameter larger than the
body of the valve stem
!
Replace the valve.
5. Measure:
S
Valve margin thickness
a
Out of specification
!
Replace the valve.
Valve margin thickness:
0.5
X
0.9 mm
(0.020
X
0.035 in)
Содержание RX10LTGTAX
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