Toyota Corolla (E120): Overhaul
1. Remove oil pump relief valve
- Remove the oil pump relief valve plug, oil pump relief valve spring and oil pump relief valve.
- Oil pump relief valve plug
- oil pump relief valve spring
- oil pump relief valve
2. Inspect oil pump assy
- Remove 3 screws and oil pump cover.
- Inspect the oil pump relief valve.
- Coat the valve with engine oil and check that it falls smoothly into the valve hole by it own weight.
- inspect the oil pump rotor sub–assembly.
- Coat the oil pump gear set with engine oil and place them into the oil pump body. Check that the rotors revolves smoothly.
- inspect rotor tip clearance.
- Using a feeler gauge, measure the clearance between
the drive and driven rotor tips.
Standard tip clearance: 0.040 – 0.160 Mm (0.0016 – 0.0063 In.)
- Inspect body clearance.
- Using a feeler gauge, measure the clearance between
the driven rotor and body.
Standard body clearance: 0.260 – 0.325 Mm (0.0102 – 0.0128 In.)
- 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: 0.025 – 0.071 Mm (0.0010 – 0.0028 In.)
- Install oil pump rotor sub–assembly.
- Coat the oil pump gear set with engine oil and place it into pump body with the marks facing the pump body cover side.
- Install oil pump rotor sub–assembly.
(1) Coat the oil pump gear set with engine oil and place it into pump body with the marks facing the pump body cover side.
3. Install oil pump relief valve
- Install the oil pump relief valve plug, oil pump relief valve
spring and oil pump relief valve.
Torque: 37 nvm (375 Kgf·cm, 27 ft·lbf)
- oil pump relief valve plug
- oil pump relief valve spring
- oil pump relief valve
Other materials:
Checking tires
Check if the treadwear indicators
are showing on the tires.
Also check the tires for uneven
wear, such as excessive wear
on one side of the tread.
Check the spare tire condition
and pressure if not rotated.
New tread
Worn tread
Treadwear indicator
The location of treadwear indicators
is show ...
Inspection procedure
1 Check wire harness(airbag sensor assy center – front seat inner
belt assy lh)
Disconnect the negative (–) terminal cable from the battery,
and wait at least for 90 seconds.
disconnect the connectors between the airbag sensor
assy center and the front seat inner belt assy ( ...
Check short circuit
If the wire harness is ground shorted as shown in fig. 5,
Locate the section by conducting a resistance check with
the body ground in step (b).
Check the resistance with the body ground.
Disconnect connectors a and c and measure the
resistance between terminals 1 and 2 ...