MECHANICAL
01-10–30
1. Measure the valve spring height using the spring
tester.
•
If it is not within the specification, replace the
valve spring.
Valve spring installation height
When pressurized with spring force of 228—
252 N {23.3—25.6 kgf, 51.3—56.6 lbf},
spring height is 38.0 mm {1.50 in}
2. Measure the amount of off-square on the valve
spring using a square.
(1) Rotate the valve spring one full turn and
measure A at the point where the gap is the
largest.
•
If it exceeds the maximum specification,
replace the valve spring.
Maximum valve spring off-square
IN: 2.0 ° (1.7 mm {0.067 in})
EX: 2.0 ° (1.7 mm {0.067 in})
End Of Sie
CAMSHAFT INSPECTION
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1. Set the No.1 and No.5 journals of the camshaft on V-blocks.
2. Measure the camshaft runout using the dial
gauge.
•
If it exceeds the maximum specification,
replace the camshaft.
Maximum camshaft runout
0.030 mm {0.0012 in}
3. Measure the cam height using the micrometer as
shown in the figure.
•
If it is less than the minimum specification,
replace the camshaft.
Standard cam height
IN: 42.34 mm {1.667 in}
EX: 40.37 mm {1.589 in}
Minimum cam height
IN: 42.27 mm {1.664 in}
EX: 40.30 mm {1.587 in}
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A
UPPER
LOWER
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1A36-1U-12L.book 30 ページ ２０１２年１２月１０日 月曜日 午前９時２５分
