Toyota 3S-GE Repair Manual page 403

EG-389
ENGINE — LUBRICATION SYSTEM
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OIL PUMP DISASSEMBLY
(See Components for Disassembly and Assembly)
REMOVE DRIVE AND DRIVEN ROTORS
Remove the 2 bolts, pump body cover, O—ring, the
drive and driven rotors.
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OIL PUMP INSPECTION
INSPECT OIL PRESSURE REGULATOR
Push the valve with a wooden stick to check if it is
stuck.
If stuck, replace the pressure regulator assembly.
INSPECT DRIVE AND DRIVEN ROTORS
Inspect rotor body clearance
Using a feeler gauge, measure the clearance between
the driven rotor and body.
Standard body clearance:
0.10 — 0.16 mm (0.0039 — 0.0063 in.)
Maximum body clearance:
0.20 mm (0.0079 in.)
If the body clearance is greater than maximum, re-
place the rotors as a set. If necessary, replace the oil
pump assembly.
Inspect rotor tip clearance
Using a feeler gauge, measure the clearance between
the drive and driven rotor tips.
Standard tip clearance:
0.04 — 0.16 mm (0.0016 — 0.0063 in.)
Maximum tip clearance:
0.20 mm (0.0079 in.)
If the tip clearance is greater than maximum, replace
the rotors as a set.
OIL PUMP OIL SEAL REPLACEMENT
1 REMOVE OIL SEAL
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g" q II, / Using a screwdriver, pry out the oil seal.
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