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14–10
EXAMPLE: (Intake)
Measured valve clearance = 0.44 mm (0.0173 in.)
0.44 mm (0.0173 in.) – 0.24 mm (0.0094 in.) = 0.20 mm (0.0079 in.)
(Measured – Specification = Excess clearance)
Used shim measurement = 5.30 mm (0.2087 in.)
0.20 mm (0.0079 in.) + 5.30 mm (0.2087 in.) = 5.50 mm (0.2165 in.)
(Excess clearance + Used shim = Ideal new shim)
Closest new shim = 5.50 mm (0.2165 in.) = Shim No. "50"
ENGINE MECHANICAL
–
(n)
Calculate the thickness of a new lifter so that the valve
clearance comes within the specified value.
A
B
C
Valve clearance:
Intake A = B + (C – 0.24 mm (0.0094 in.))
Exhaust: A = B + (C – 0.35 mm (0.0138 in.))
(1)
HINT:
S
Lifters are available in 35 sizes in increments of 0.020 mm
(0.0008 in.), from 5.060 mm (0.1992 in.) to 5.740 mm
(0.2260 in.).
S
Refer to valve lifter selection chart on the following 2
pages.
VALVE CLEARANCE (2AZ–FE)
Thickness of new lifter
Thickness of used lifter
Measured valve clearance
Select a new lifter with a thickness as close as pos-
sible to the calculated values.
Author :
Date :
1532
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