Toyota 2VZ-FE Manual page 48

EM-46
ENGINE MECHANICAL – Cylinder Heads
E. Inspect camshaft gear spring
Using vernier calipers, measure the free distance between
the spring end.
Free distance:
If the free distance is not as specified, replace the gear
spring.
F. Inspect camshaft journal oil clearance
(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
journals.
(d) Install the bearing caps.
(See step 4 on pages
Torque: 160 kg–cm (12 ft–lb, 16 N–m)
NOTICE: Do not turn the camshaft.
(e) Remove the bearing caps.
(f) Measure the Plastigage at its widest point.
Standard oil clearance: 0.035–0.072 mm
Maximum oil clearance: 0.10 mm (0.0039 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.
G. Inspect camshaft thrust clearance
(a) Install the camshafts.
(See step 4 on pages
(b) Using a dial indicator, measure the thrust clearance
while moving the camshaft back and forth.
Standard thrust clearance: 0.030–0.080 mm
Maximum thrust clearance: 0.12 mm (0.0047 in.)
If the thrust clearance is greater than maximum, replace the
camshaft. If necessary, replace the bearing caps and cylin-
der head as a set.
18.2–18.8 mm (0.712–0.740 in.)
EM–52 to 55)
(0.0014–0.0028 in.)
EM–52 to EM–55)
(0.0012–0.0031 in.)