Suzuki GSF650, Руководство по обслуживанию

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ENGINE 3-31
VALVE FACE WEAR
Visually inspect each valve face for wear. Replace any valve
with an abnormally worn face. The thickness of the valve face
decreases as the face wears. Measure the valve face
T
. If it is
out of specification replace the valve with a new one.
)
09900-20102: Vernier calipers
(
Valve face thickness
T
Service Limit: 0.5 mm
VALVE STEM DEFLECTION
Lift the valve about 10 mm from the valve seat. Measure the
valve stem deflection in two directions, “X” and “Y”, perpendicu-
lar to each other. Position the dial gauge as shown. If the deflec-
tion exceeds the service limit, then determine whether the valve
or the guide should be replaced with a new one.
)
09900-20606: Dial gauge (1/100 mm)
09900-20701: Magnetic stand
(
Valve stem deflection (IN & EX)
Service Limit: 0.35 mm
VALVE STEM WEAR
Measure the valve stem O.D. using the micrometer. If it is out of
specification, replace the valve with a new one. If the valve stem
O.D. is within specification but the valve stem deflection is not,
replace the valve guide. After replacing the valve or valve guide,
recheck the deflection.
)
09900-20205: Micrometer (0 – 25 mm)
(
Valve stem O.D.
Standard (IN) : 4.965 – 4.980 mm
(EX) : 4.945 – 4.960 mm
NOTE:
If valve guides have to be replaced, refer to the valve guide ser-
vicing steps below.
VALVE GUIDE SERVICING
• Using the valve guide remover
1
, drive the valve guide out
toward the intake or exhaust camshaft side.
)
09916-44310: Valve guide remover/installer
NOTE:
* Discard the removed valve guide subassemblies.
* Only oversized valve guides are available as replacement
parts. (Part No. 11116-06B70)
10 mm