INSPECTION AND REPAIR OF BASIC ENGINE
6-3
1.3 Replacing valve guide
(1)
Pull out the valve guide from the bottom to the top face
of the cylinder head with a press using a blanking tool.
(2) Using a stopper, press-fit the new valve guide from the
top surface of cylinder head.
After press-fitting, make sure the dimensions of valve
position are as shown in the illustration.
(3) After press-fitting the guide, insert new valve and make
sure that it slides.
(4) Inspect contact between the valve and valve seat.
Pulling out valve guide
Press fitting valve guide
Puller
Valve guide
Puller
20
[0.79]
65
[2.56]
Ǿ6
[0.24]
Ǿ10
[0.39]
Unit mm [in.]
(Ǿ25) [0.98]
Ǿ12.5 [0.492]
Ǿ24 [0.94]
(Ǿ12) [0.47]
(Ǿ6.6
+0.015
0
)
[0.260
+0.00059
0
]
14r0.5
[0.55r]
14r0.1 [0.55r]
Stopper
Unit mm [in.]
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