Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM100000001I1IX |
Model Year Start: 2020 |
Model: Corolla |
Prod Date Range: [03/2019 - 09/2022] |
Title: 2ZR-FAE (ENGINE MECHANICAL): CAMSHAFT: REMOVAL; 2020 - 2022 MY Corolla [03/2019 - 09/2022] |
REMOVAL
CAUTION / NOTICE / HINT
The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during camshaft removal/installation are shown below.
Necessary Procedures After Parts Removed/Installed/Replaced
Replaced Part or Performed Procedure
|
Necessary Procedure
|
Effect/Inoperative Function when Necessary Procedure not Performed
|
Link
|
Battery terminal is disconnected/reconnected
|
Perform steering sensor zero point calibration
|
Lane Control System
|
|
Pre-collision System
|
Lighting System (w/ AFS)(EXT)
|
Replacement of ECM
|
Vehicle Identification Number (VIN) registration
|
MIL comes on
|
|
ECU communication ID registration (Immobiliser system)
|
Engine start function
|
|
-
Reset memory
-
Deceleration sensor zero point calibration
-
CVT oil pressure calibration
|
-
Large shift shock
-
Deterioration of fuel efficiency
|
|
Replacement of ECM*1
|
Code registration (Smart Key System (for Gasoline Model, Start Function))
|
-
Wireless Door Lock Control System (for Gasoline Model with Smart Key System)
-
Smart Key System (for Gasoline Model, Entry Function)
-
Smart Key System (for Gasoline Model, Start Function)
-
Steering lock function
|
|
Replacement of ECM*2
|
Code registration (Immobiliser system)
|
Engine start
|
|
-
Replacement of throttle body assembly
-
Replacement of engine assembly
-
Replacement of camshaft timing gear assembly
-
Replacement of camshaft timing exhaust gear assembly
-
Replacement of fuel injector assembly
-
Replacement of ignition coil assembly
-
Gas leak from exhaust system is repaired
-
Replacement of continuously variable valve lift controller assembly
|
Inspection After Repair
|
-
Poor idle, etc.
-
Engine start function, etc.
|
|
Suspension, tires, etc.
(The vehicle height changes because of suspension or tire replacement)
|
Perform headlight ECU sub-assembly LH initialization
|
Lighting system (w/ AFS)(EXT)
|
|
Front wheel alignment adjustment
|
-
Perform "Reset Memory".
-
Perform acceleration sensor zero point calibration and store system information memorization.
|
-
VSC is disabled or malfunctions
-
DTCs are output
-
Slip indicator light illuminates
-
ABS warning light illuminates
|
w/ Electric Parking Brake System:
w/o Electric Parking Brake System:
|
CVT fluid
|
ATF thermal degradation estimate reset
|
The value of the Data List item "ATF Thermal Degradation Estimate" is not estimated correctly
|
for K313
|
NOTICE:
After the ignition switch is turned off, the radio and display receiver assembly records various types of memory and settings. As a result, after turning the ignition switch off, make sure to wait at least 85 seconds before disconnecting the cable from the negative (-) battery terminal. (for Navigation System and Audio and Visual System (for Gasoline Model))
PROCEDURE
1. REMOVE CHAIN SUB-ASSEMBLY
Click here
2. INSPECT CAMSHAFT TIMING GEAR ASSEMBLY
Click here
3. INSPECT CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY
Click here
4. REMOVE CAMSHAFT TIMING GEAR ASSEMBLY
Click here
5. REMOVE CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY
Click here
6. REMOVE VALVE ROCKER ARM LOST MOTION DAMPER SUB-ASSEMBLY
(a) Remove the 8 bolts and 4 valve rocker arm lost motion damper sub-assemblies.
NOTICE:
-
Make sure the camshaft housing sub-assembly is installed to the cylinder head sub-assembly when removing or installing a valve rocker arm lost motion damper sub-assembly.
-
If a valve rocker arm lost motion damper sub-assembly is removed, do not remove the camshaft housing sub-assembly.
-
Do not remove the shims. If a shim is removed, replace the camshaft housing sub-assembly as engine malfunctions may result from irregular valve timing.
|
|
7. INSTALL VALVE ROCKER ARM LOST MOTION DAMPER SUB-ASSEMBLY
(a) Install the 4 valve rocker arm lost motion damper sub-assemblies with the 8 bolts. Uniformly tighten the bolts.
Torque:
10 N·m {102 kgf·cm, 7 ft·lbf}
|
|
(b) Add engine oil into the hole for engine oil.
8. REMOVE CAMSHAFT HOUSING SUB-ASSEMBLY
NOTICE:
-
The camshaft housing sub-assembly is replaced with an assembled unit that includes the camshaft housing, camshafts, camshaft bearing caps, valve rocker shaft, continuously variable valve lift controller assembly and valve rocker arm lost motion damper sub-assembly. If disassembled, replace the camshaft housing sub-assembly.
-
The camshafts cannot be replaced by themselves.
*1
|
Camshaft Housing Sub-assembly
|
*2
|
Continuously Variable Valve Lift Controller Assembly
|
*a
|
Set of parts that are replaced together
|
-
|
-
|
(a) Uniformly loosen and remove the 17 bearing cap bolts in the order shown in the illustration.
NOTICE:
Uniformly loosen the bearing cap bolts while keeping the camshaft housing level.
|
|
(b) Using a screwdriver, remove the camshaft housing sub-assembly by prying between the cylinder head sub-assembly and camshaft housing sub-assembly.
NOTICE:
Be careful not to damage the contact surfaces of the cylinder head sub-assembly and camshaft housing sub-assembly.
HINT:
Tape the screwdriver tip before use.
|
|
9. REMOVE NO. 1 VALVE ROCKER ARM SUB-ASSEMBLY
Click here
10. REMOVE VALVE LASH ADJUSTER ASSEMBLY
Click here
11. INSPECT NO. 1 VALVE ROCKER ARM SUB-ASSEMBLY
Click here
12. INSPECT VALVE LASH ADJUSTER ASSEMBLY
Click here
|