2ZR-FAE (ENGINE MECHANICAL): CAMSHAFT: INSTALLATION; 2020 - 2023 MY Corolla [01/2019

Last Modified: 07-31-2024	6.11:8.1.0	Doc ID: RM100000001G456
Model Year Start: 2020	Model: Corolla	Prod Date Range: [01/2019 - 11/2022]
Title: 2ZR-FAE (ENGINE MECHANICAL): CAMSHAFT: INSTALLATION; 2020 - 2023 MY Corolla [01/2019 - 11/2022]

INSTALLATION

CAUTION / NOTICE / HINT

HINT:

Perform "Inspection After Repair" after replacing the camshaft housing sub-assembly, camshaft timing gear assembly or camshaft timing exhaust gear assembly.

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PROCEDURE

1. INSTALL VALVE LASH ADJUSTER ASSEMBLY

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2. INSTALL NO. 1 VALVE ROCKER ARM SUB-ASSEMBLY

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3. INSTALL CAMSHAFT HOUSING SUB-ASSEMBLY

(a) Make sure that the No. 1 valve rocker arm sub-assemblies are installed as shown in the illustration.

*1	No. 1 Valve Rocker Arm Sub-assembly
*2	Valve Lash Adjuster Assembly
*3	Valve Stem Cap
*a	Correct
*b	Incorrect

(b) Apply seal packing in a continuous line as shown in the illustration.

Seal Packing:

Toyota Genuine Seal Packing Black, Three Bond 1207B or equivalent

Seal Packing Application Chart:

Area	Seal Packing Diameter	Application length
Continuous line	3.5 to 4.5 mm (0.138 to 0.177 in.)	-
(A)	8.0 mm (0.315 in.)	15 mm (0.591 in.)
(B)	7.0 mm (0.276 in.)	15 mm (0.591 in.)

NOTICE:

Remove any oil from the contact surfaces.
Install the camshaft housing sub-assembly within 3 minutes and tighten the bolts within 10 minutes of applying seal packing.
Do not start the engine for at least 2 hours after installation.

*a	Continuous line

(d) Install the camshaft housing sub-assembly with the 17 bolts and tighten them in the order shown in the illustration.

Torque:

27 N·m {275 kgf·cm, 20 ft·lbf}

NOTICE:

After installing the camshaft housing sub-assembly, make sure that the cam lobes are positioned as shown in the illustration.
If any of the bolts are loosened during installation, remove the camshaft housing sub-assembly, clean the installation surfaces, and reapply seal packing.
If the camshaft housing sub-assembly is removed because any of the bolts are loosened during installation, make sure that the previously applied seal packing does not enter any oil passages.
After installing the camshaft housing sub-assembly, wipe off any seal packing that seeped out from between the camshaft housing sub-assembly and cylinder head sub-assembly.

HINT:

Perform "Inspection After Repair" after replacing the camshaft housing sub-assembly.

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4. INSTALL CAMSHAFT TIMING GEAR ASSEMBLY

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5. INSTALL CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY

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6. INSTALL CHAIN SUB-ASSEMBLY

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