P03976
P03977
EM3322
Free Distance
P14668
Plastigage
P14665
EM--48
--
ENGINE MECHANICAL
CYLINDER HEAD (2RZ--FE)
15. INSPECT CAM LOBES
Using a micrometer, measure the cam lobe height.
Standard cam lobe height:
Intake
45.31 -- 45.41 mm (1.7839 -- 1.7878 in.)
Exhaust
45.06 -- 45.16 mm (1.7740 -- 1.7779 in.)
If the cam lobe height is less than standard allowable, replace
the camshaft.
16. INSPECT CAMSHAFT J OURNALS
Using a micrometer, measure the journal diameter.
Journal diameter:
26.959 -- 26.975 mm (1.0614 -- 1.0620 in.)
If the journal diameter is not as specified, check the oil clear-
ance.
17. INSPECT CAMSHAFT BEARINGS
Check the bearings for flaking and scoring.
If the bearings are damaged, replace the bearing caps and cyl-
inder head as a set.
18. INSPECT CAMSHAFT GEAR SPRING
Using a vernier caliper, measure the free distance between the
spring ends.
Free distance:
22.5 -- 22.9 mm (0.886 -- 0.902 in.)
If the free distance is not as specified, replace the gear spring.
19. INSPECT CAMSHAFT J OURNAL O I L CLE ARANCE
(a)
Clean the bearing caps and camshaft journals.
(b)
Place the camshafts on the cylinder head.
(c)
Lay a strip of Plastigage across each of the camshaft jour-
nals.
(d)
Install the bearing caps.
Torque:15.5 N
∙
m (160 kgf
∙
cm, 12 ft
∙
lbf)
NOTICE:
Do not turn the camshaft.
(e)
Remove the bearing caps.
(f)
Measure the Plastigage at its widest point.
Standard oil clearance:
0.025 -- 0.062 mm (0.0010 -- 0.0024 in.)
Maximum oil clearance:
0.08 mm (0.0031 in.)
If the oil clearance is greater than maximum, replace the cam-
shaft. If necessary, replace the bearing caps and cylinder head
as a set.
(g)
Completely remove the Plastigage.
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3RZ-F,3RZ-FE
