Toyota T100 1996 Service Manual page 873

Free Distance
Plastigage
1996 TOYOTA T100 (RM449U)
ENGINE MECHANICAL (5VZ−FE)
16.
Using a micrometer, measure the journal diameter.
If the journal diameter is not as specified, check the oil clear-
ance.
17.
Check the bearings for flaking and scoring.
If the bearings are damaged, replace the bearing caps and cyl-
EM2538
inder head as a set.
18.
Using vernier calipers, measure the free distance between the
spring ends.
If the free distance is not as specified, replace the gear spring.
EM3322
19.
(a)
(b)
(c)
(d)
NOTICE:
Do not turn the camshaft.
P20858
(e)
(f)
If the oil clearance is greater than maximum, replace the cam-
shaft. If necessary, replace the bearing caps and cylinder head
as a set.
P20852
(g)
20.
(a)
(b)
P20855
− CYLINDER HEAD
INSPECT CAMSHAFT JOURNALS
Journal diameter:
26.949 − 26.965 mm (1.0610 − 1.0616 in.)
INSPECT CAMSHAFT BEARINGS
INSPECT CAMSHAFT GEAR SPRING
Free distance:
18.2 − 18.8 mm (0.712 − 0.740 in.)
INSPECT CAMSHAFT JOURNAL OIL CLEARANCE
Clean the bearing caps and camshaft journals.
Place the camshafts on the cylinder head.
Lay a strip of Plastigage across each of the camshaft jour-
nals.
Install the bearing caps (See page EM−51).
Torque: 16 N·m (160 kgf·cm, 12 ft·lbf)
Remove the bearing caps.
Measure the Plastigage at its widest point.
Standard oil clearance:
0.035 − 0.072 mm (0.0014 − 0.0028 in.)
Maximum oil clearance:
0.10 mm (0.0039 in.)
Completely remove the plastigage.
INSPECT CAMSHAFT THRUST CLEARANCE
Install the camshafts (See page EM−51).
Using a dial indicator, measure the thrust clearance while
moving the camshaft back and forth.
Standard thrust clearance:
0.033 − 0.080 mm (0.0013 − 0.0031 in.)
Maximum thrust clearance:
0.12 mm (0.0047 in.)
EM−45