Toyota 2VZ-FE, Manual

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H. Inspect camshaft gear backlash
(a) Install
the camshafts without installing the exhaust
camshaft sub–gear.
(See step 4 on pages
EM–52 to 55)
(b) Using a dial indicator, measure the backlash.
Standard backlash: 0.020–0.200 mm
(0.0008–0.0079 in.)
Maximum backlash: 0.30 mm (0.0188 in.)
If the backlash is greater than maximum, replace the cam-
shafts.
15. INSPECT VALVE LIFTERS AND LIFTER BORES
(a) Using a caliper gauge, measure the lifter bore diameter
of the cylinder head.
Lifter bore diameter: 28.000–28.021 mm
(1.1024–1.1032 in.)
(b) Using a micrometer, measure the lifter diameter.
Lifter diameter: 27.975–27.985 mm
(1.1014–1.1018 in.)
(c) Subtract the lifter diameter measurement from the lifter
bore diameter measurement.
Standard oil clearance: 0.015–0.046 mm
(0.0005–0.0018 in.)
Maximum oil clearance: 0.07 mm (0.0028 in.)
If the oil clearance is greater than maximum, replace the lifter.
If necessary, replace the cylinder head.
16. INSPECT INTAKE MANIFOLD, EXHAUST MANIFOLDS
AND AIR INTAKE CHAMBER
(a) (Intake
Manifold)
Using precision straight edge and feeler gauge, mea-
sure the surfaces contacting the cylinder head and air
intake chamber for warpage.
Maximum warpage: 0.10 mm (0.0039 in.)
If warpage is greater than maximum, replace the intake
manifold.
(b) (Exhaust
Manifolds)
Measure the surfaces contacting the cylinder head for
warpage.
Maximum warpage: 1.00 mm (0.0394 in.)
If warpage is greater than maximum, replace the exhaust
manifold.
(c) (Air Intake Chamber)
Measure the surfaces contacting the intake manifold for
warpage.
Maximum warpage: 0.10 mm (0.0039 in.)
If warpage is greater than maximum, replace the air intake
chamber.
EM-47
ENGINE MECHANICAL – Cylinder Heads