Cylinder head and valve mechanisms
58
Check of spring
1. Place the journals of camshafts No. 1 and 5 on the V-block, measure the radius run-out of
camshaft. Replace the camshaft when necessary.
Radius run-out: 0.03mm {0.0012in}
2. Measure the height of two convexes as shown in Fig. Replace the camshaft when
necessary.
Standard height
Intake side: 43.81mm{1.7248in}; Exhaust side: 43.78mm {1.7236in}
Min.height
Intake side: 43.61mm{1.7169in}; Exhaust side: 43.58mm {1.7157in}
3. Measure the journal diameters at two points of A and B shown in Fig, respectively in the
directions X and Y, replace the camshaft when necessary.
Standard diameter: 25.940～25.965mm{1.0213～1.0222in}
Min.diameter: 25.910mm{1.0201in}
4. Remove the tappet and measure the journal clearance of camshaft according to the
method shown as below:
(1) Wipe out all oil on/in the journal and bearing seat.
(2) Contain the camshaft into the bearing seat.
(3) As shown in the following figure, cut the clearance gauge of plastic line into the size
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