Examination
Chapter X. Cylinder head
73
pack
5. Valve removal
withdrawal.
can damage the rubber and make it difficult to
(a) Remove the valve from the combustion chamber side.
(c) Measure the diameter of the valve stem
ÿ Inlet valve: 5.978±0.007mm
(1) Measure the diameter of the valve stem at three points (A, B
and C) along the X and Y axes as shown in the figure.
7. Check valve and valve guide.
6. Removing valve stem seals
ÿ Exhaust valve: 5.958±0.007mm
(2) Replace the valve if the actual diameter is out of range.
(a) Clamp the metal ring on the bottom of the oil seal. Rotate the ring and
pull it out to remove the oil seal. Dispose of the oil scraper
(a) Measure the length of each valve.
ÿ Inlet valve: 103.65-104.15mm
Note:
ÿ Do not remove valve stem seals unnecessarily.
ÿ Exhaust valve: 101.65-102.15mm
ÿ Do not pull on the rubber part of the cap as this may
(b) Replace the valve if the actual length is out of range.
Valve length
Machine Translated by Google
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