Toyota RM787U, Руководство по обслуживанию и ремонту

Страница: 1054 / 1976

Z09456
Front of No.1 and No.2 Cylinders
Others
SST (A)
SST (A)
SST (B)
SST (B)
P12920
SST (B)
Magnetic Finger
EM0494
EM-6
- ENGINE MECHANICAL VALVE CLEARANCE
949
Author: Date:
2001 SIENNA (RM787U)
(3) Using SST (A), press down the valve lifter and place
SST (B) between the camshaft and valve lifter. Re-
move SST (A).
SST 09248-55040 (09248-05410, 09248-05420)
HINT:
Apply SST (B) at a slight angle on the side marked with
”9” or ”7”, at the position shown in the illustration.
When SST (B) is inserted too deeply, it will get pinched by
the shim. To prevent it from being stuck, insert it gently
from the intake side, at a slight angle.
Using a small screwdriver and magnetic finger, remove
the adjusting shim.
(b) Determine the replacement adjusting shim size according
to these Formula or Charts:
(1)
Using a micrometer, measure the thickness of the
removed shim.
(2) Calculate the thickness of a new shim so the valve
clearance comes within the specified value.
T .......... Thickness of used shim
A .......... Measured valve clearance
N .......... Thickness of new shim
Intake: N = T + (A - 0.20 mm (0.008 in.))
Exhaust: N = T + (A - 0.30 mm (0.012 in.))
(3)
Select a new shim with a thickness as close as pos-
sible to the calculated values.
HINT:
Shims are available in 17 sizes in increments of 0.050 mm
(0.0020 in.), from 2.500 mm (0.0984 in.) to 3.300 mm (0.1299
in.).