Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM10000000267I1 |
Model Year Start: 2023 |
Model: Corolla |
Prod Date Range: [09/2022 - 11/2022] |
Title: 2ZR-FXE (ENGINE MECHANICAL): CAMSHAFT: REMOVAL; 2023 MY Corolla Corolla HV [09/2022 - 11/2022] |
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 Procedure After Parts Removed/Installed/Replaced
Replaced Part or Performed Procedure
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Necessary Procedure
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Effect/Inoperative Function when Necessary Procedure not Performed
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Link
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Replacement of throttle body assembly
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Replacement of camshaft (for intake or exhaust camshaft)
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Replacement of camshaft timing gear assembly
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Replacement of ignition coil assembly
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Inspection After Repair
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Poor idle, etc.
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Engine start function, etc.
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HINT:
When the cable is disconnected / reconnected to the auxiliary battery terminal, systems temporarily stop operating. However, each system has a function that completes learning the first time the system is used.
Learning completes when vehicle is driven
Effect/Inoperative Function when Necessary Procedure not Performed
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Necessary Procedure
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Link
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Front Camera System (for TMC Made)
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Drive the vehicle straight ahead at 15 km/h (9 mph) or more for 1 second or more.
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PROCEDURE
1. REMOVE NO. 1 ENGINE UNDER COVER ASSEMBLY
Click here
2. DRAIN ENGINE COOLANT (for Engine)
Click here
3. REMOVE WINDSHIELD WIPER MOTOR AND LINK
Click here
4. REMOVE NO. 1 HEATER AIR DUCT SPLASH SHIELD SEAL
Click here
5. REMOVE OUTER COWL TOP PANEL SUB-ASSEMBLY
Click here
6. DISCONNECT FLOOR SHIFT TRANSMISSION CONTROL SELECT CABLE
(a) Remove the bolt to disconnect the floor shift transmission control select cable from the cylinder head cover sub-assembly.
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7. DISCONNECT NO. 2 VENTILATION HOSE
Click here
8. REMOVE IGNITION COIL ASSEMBLY
Click here
9. REMOVE CAMSHAFT POSITION SENSOR
Click here
10. DISCONNECT ENGINE WIRE
(a) Disconnect the 3 connectors.
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(b) Disengage the 4 clamps.
(c) Remove the bolt and disconnect the engine wire from the cylinder head cover sub-assembly.
11. DISCONNECT FUEL VAPOR FEED HOSE
Click here
12. REMOVE EGR PIPE ASSEMBLY
Click here
13. DISCONNECT NO. 8 WATER BY-PASS HOSE
Click here
14. DISCONNECT NO. 9 WATER BY-PASS HOSE
Click here
15. REMOVE PURGE VALVE (PURGE VSV)
Click here
16. REMOVE FUEL VAPOR FEED PIPE
Click here
17. REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY
Click here
18. REMOVE CYLINDER HEAD COVER GASKET
Click here
19. REMOVE SPARK PLUG TUBE GASKET
Click here
20. SET NO. 1 CYLINDER TO TDC (COMPRESSION)
(a) Set the No. 1 cylinder to TDC (Compression).
Click here
(b) Place paint marks on the chain sub-assembly in alignment with the timing marks on the camshaft timing gear assembly and camshaft timing sprocket.
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*a
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Paint Mark
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*b
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Timing Mark
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21. REMOVE NO. 2 CHAIN VIBRATION DAMPER
(a) Using SST, remove the 2 bolts and No. 2 chain vibration damper from the No. 1 camshaft bearing cap.
SST: 09961-00950
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22. REMOVE NO. 1 CHAIN TENSIONER ASSEMBLY
Click here
23. REMOVE CAMSHAFT TIMING SPROCKET
(a) While holding the hexagonal portion of the No. 2 camshaft with a wrench, remove the bolt with SST and 14 mm union nut wrench.
SST: 09961-00950
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*a
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14 mm Union Nut Wrench
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*b
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Hold
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*c
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Turn
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(b) While removing the chain sub-assembly, pull out the camshaft timing sprocket horizontally and then upward.
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24. INSPECT CAMSHAFT TIMING GEAR ASSEMBLY
Click here
25. REMOVE CAMSHAFT BEARING CAP
(a) Uniformly loosen and remove the 10 bolts in the order shown in the illustration.
NOTICE:
Do not loosen the other 10 bearing cap bolts in this step.
HINT:
Arrange the removed parts in such a way that they can be reinstalled to their original locations.
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(b) Remove the bolts and camshaft bearing caps in the order shown in the illustration. Immediately after removing each camshaft bearing cap, install service bolts and spacers in the order shown in the illustration.
*a
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The removal order of the parts
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*b
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The installation order of the service bolts and spacers for temporarily tightening the camshaft housing sub-assembly
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*c
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Service bolt and spacer (Used to temporarily secure the camshaft housing sub-assembly)
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Torque:
27 N·m {275 kgf·cm, 20 ft·lbf}
NOTICE:
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If the bolts are loosened all at once, seal packing on the camshaft housing sub-assembly and cylinder head sub-assembly may separate, resulting in oil leaks. Therefore, be sure to install the service bolts and spacers to one camshaft bearing cap at a time.
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Do not install the camshaft bearing caps when installing the service bolts and spacers.
HINT:
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Arrange the removed parts in such a way that they can be reinstalled to their original locations.
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Part number for the service bolt used to temporarily secure the camshaft housing sub-assembly: 91551-G0875 (15 bolts)
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Part number for the spacer used to temporarily secure the camshaft housing sub-assembly: 90387-12048 (15 spacers)
26. REMOVE NO. 2 CAMSHAFT
(a) Remove the No. 2 camshaft from the camshaft housing sub-assembly.
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27. REMOVE CAMSHAFT
(a) Hold up the chain sub-assembly and remove the camshaft from the camshaft housing sub-assembly.
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(b) Suspend the chain sub-assembly with a string or equivalent.
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28. REMOVE CAMSHAFT TIMING GEAR ASSEMBLY
(a) Secure the hexagonal portion of the camshaft in a soft jaw vise.
(b) Remove the bolt and camshaft timing gear assembly.
NOTICE:
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Before removing the camshaft timing gear assembly, make sure that the lock pin has been released.
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Do not remove the other 4 bolts.
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Keep the camshaft timing gear assembly horizontal while removing it from the camshaft.
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If the camshaft timing gear assembly is to be reused, be sure to install it with the lock pin released.
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29. REMOVE NO. 1 CAMSHAFT BEARING
Click here
30. REMOVE NO. 2 CAMSHAFT BEARING
Click here
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