Toyota 2VZ-FE Manual page 217

LU–12
LUBRICATION SYSTEM –
INSPECTION OF OIL PUMP
1. INSPECT RELIEF VALVE
Coat the valve with engine oil and check that it falls smoothly
into the valve hole by its own weight.
If it doesnt, replace the relief valve. If necessary, replace the
oil pump assembly.
2. INSPECT DRIVE AND DRIVEN ROTORS
A. Inspect rotor body clearance
Using a feeler gauge, measure the clearance between the
driven rotor and body.
Standard body clearance: 0.100 – 0.175 mm
Maximum body clearance: 0.30 mm (0.0118 in.)
If the body clearance is greater than maximum, replace the
rotors as a set. If necessary, replace the oil pump assembly.
B. Inspect rotor side clearance
Using a feeler gauge and precision straight edge, measure
the clearance between the rotors and precision straight
edge.
Standard side clearance: 0.030 – 0.090 mm
Maximum side clearance: 0.15 mm (0.0059 in.)
If the side clearance is greater than maximum, replace the ro-
tors as a set. If necessary, replace the oil pump assembly.
C. Inspect rotor tip clearance
Using a feeler gauge, measure the clearance between the
drive and driven rotors.
Standard tip clearance:
Maximum tip clearance: 0.35 mm (0.0138 in.)
If the tip clearance is greater than maximum, replace the ro-
tors as a set.
REPLACEMENT OF CRANKSHAFT
FRONT OIL SEAL
(See page EM–84)
Oil Pump
(0.0039 – 0.0069 in.)
(0.0012 – 0.0035 in.)
0.110–0.240 mm
(0.0043–0.0094 in.)