Last Modified: 07-31-2024 6.11:8.1.0 Doc ID: RM100000001G459
Model Year Start: 2020 Model: Corolla Prod Date Range: [01/2019 - 11/2022]
Title: 2ZR-FAE (ENGINE MECHANICAL): CYLINDER HEAD GASKET: INSTALLATION; 2020 - 2023 MY Corolla [01/2019 - 11/2022]

INSTALLATION

CAUTION / NOTICE / HINT

HINT:

Perform "Inspection After Repair" after replacing the cylinder head sub-assembly.

Click here 2020 - 2023 MY Corolla [01/2019 - 11/2022]; 2ZR-FAE (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION

PROCEDURE

1. INSTALL CYLINDER HEAD GASKET

(a) Remove any oil from the contact surfaces.

(b) Apply seal packing to the cylinder block sub-assembly as shown in the illustration.

*a

Cylinder Block Sub-assembly

*b

2.0 to 4.0 mm (0.0787 to 0.157 in.)

*c

10 to 15 mm (0.394 to 0.591 in.)

*d

Diameter 4.0 mm (0.157 in.)

Front of Engine

Seal Packing:

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

NOTICE:

Install the cylinder head gasket within 3 minutes and tighten the cylinder head set bolts within 15 minutes of applying seal packing.

(c) Place a new cylinder head gasket on the cylinder block sub-assembly as shown in the illustration.

*a

Lot No.

Front of Engine

NOTICE:

Make sure to install the cylinder head gasket in the correct direction.

(d) Apply seal packing to the cylinder head gasket as shown in the illustration.

*a

Cylinder Head Gasket

*b

0 to 2.0 mm (0 to 0.0787 in.)

*c

10 to 15 mm (0.394 to 0.591 in.)

*d

Diameter 4.0 mm (0.157 in.)

Front of Engine

Seal Packing:

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

2. INSTALL CYLINDER HEAD SUB-ASSEMBLY

HINT:

The cylinder head set bolts are tightened in 3 progressive steps.

(a) Clean the cylinder block sub-assembly and cylinder head sub-assembly with solvent.

(b) Place the cylinder head sub-assembly on the cylinder block sub-assembly.

NOTICE:

  • Remove any oil from the contact surface of the cylinder head sub-assembly.
  • Place the cylinder head sub-assembly on the cylinder block sub-assembly gently in order not to damage the gasket with the bottom of the cylinder head sub-assembly.

(c) Install the 10 cylinder head set plate washers to the 10 cylinder head set bolts.

(d) Apply a light coat of engine oil to the threads and under the heads of the cylinder head set bolts.

(e) Step 1:

(1) Using a 10 mm bi-hexagon socket wrench, install and uniformly tighten the 10 cylinder head set bolts in several steps in the order shown in the illustration.

Torque:

49 N·m {500 kgf·cm, 36 ft·lbf}

NOTICE:

Do not drop the cylinder head set plate washers for the cylinder head set bolts into the cylinder head sub-assembly.

(f) Step 2:

*a

Paint Mark

Front of Engine

(1) Mark each cylinder head set bolt head with paint as shown in the illustration.

(2) Tighten the cylinder head set bolts 90° in the order shown in step 1.

(g) Step 3:

(1) Tighten the cylinder head set bolts another 45° in the order shown in step 1.

(h) Check that the paint marks are now at a 135° angle.

NOTICE:

Do not add engine oil for at least 2 hours after installing the cylinder head sub-assembly.

(i) After tightening the cylinder head set bolts, wipe off any seal packing that seeped out from the contact surfaces between the cylinder head sub-assembly and cylinder block sub-assembly.

NOTICE:

  • Be sure to wipe off the seal packing from inside to outside, parallel to the joint line.
  • Be sure to avoid clogging the bolt holes when wiping off the seal packing.

*a

Before Wiping Off

*b

After Wiping Off

3. INSTALL NO. 1 WATER BY-PASS PIPE

Click here 2020 MY Corolla [01/2019 - 03/2019]; 2ZR-FAE (ENGINE MECHANICAL): ENGINE UNIT: INSTALLATION+ 2020 - 2022 MY Corolla [03/2019 - 09/2022]; 2ZR-FAE (ENGINE MECHANICAL): ENGINE UNIT: INSTALLATION+ 2023 MY Corolla [09/2022 - 11/2022]; 2ZR-FAE (ENGINE MECHANICAL): ENGINE UNIT: INSTALLATION+

4. INSTALL CAMSHAFT HOUSING SUB-ASSEMBLY

Click here 2020 - 2023 MY Corolla [01/2019 - 11/2022]; 2ZR-FAE (ENGINE MECHANICAL): CAMSHAFT: INSTALLATION