Toyota 1HD-FT Repair Manual page 65

(f)
EG
EG-52
ENGINE - ENGINE MECHANICAL
(d) Using a micrometer. measure the diameter of the
rocker arm shaft.
Shaft diemeter:
19.972 - 19.993 mm (0.7863 - 0.7871 in.)
(8)
Subtract the rocker arm shaft measurement from the
rocker arm measurement.
Standard oil cla.rence:
0.019 - 0.061 mm (O.OOO7 - 0.0024 in.)
Maximum oil cI •• rence:
0.' 0
mm
(0.0039
in.)
If the clearance is greater than maximum, replace the
rocker shaft and shaft.
Assemble the parts as shown in the illustration.
(See step (b) above)
10.
A.
(a)
(b)
B.
INSPECT CAMSHAFTS AND BEARINGS
Inspect cam.haft for runout
Place the camshaft on V-blocks.
Using a dial indicator. measure the circle runout at the
center journal.
Maximum circle runout:
0.10
mm
(0.0039 in.1
If the circle runout is greater than maximum. replace
the camshaft.
Inspect cam lobes
Using a micrometer, measure the cam lobe height.
Standard cam lobe height:
Intake
48.498 - 48.598 mm (1.9094 - 1.9133
in.)
Exhauat
50.734 - 50.834 mm (1.9974 - 2.0013 in.)
Minimum cam
lobe
height:
Intake
47.998 mm (1.8897 in.)
Exhauat
50.234 mm (1.9777 in.)
If the cam lobe height is less than minimum. replace
the camshaft.