Installation

1UR-FSE ENGINE MECHANICAL: CAMSHAFT (for Bank 1): INSTALLATION

1. INSTALL CAMSHAFT BEARING CAP (for Bank 1)

(a) Apply a light coat of engine oil to the camshaft journals, camshaft housing and bearing caps.

(b) Install the No. 3 and No. 4 camshafts to the camshaft housing.

(c) Confirm the marks and numbers on the camshaft bearing caps and place them in their proper positions and directions.





(d) Temporarily install the 8 bolts in the order shown in the illustration.





2. INSTALL CAMSHAFT HOUSING SUB-ASSEMBLY (for Bank 1)

(a) Make sure that the valve rocker arms are installed as shown in the illustration.





(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

Standard seal diameter:

3.5 to 4.0 mm (0.138 to 0.158 in.)

NOTICE:
* Remove any oil from the contact surface.
* Install the camshaft housing within 3 minutes and tighten the bolts within 15 minutes after applying seal packing.
* Do not start the engine for at least 2 hours after the installation.

(c) Install the camshaft housing, and install the 12 bolts in the order shown in the illustration.

Bank 1:

Torque : 10 Nm (102 kgf-cm, 7 ft-lbf) for bolt A

Torque : 30 Nm (306 kgf-cm, 22 ft-lbf) for bolts except A

NOTICE:
Make sure that each knock pin of the camshafts is positioned as shown in the illustration before installing the camshaft housing.

(d) Tighten the 8 bolts in the order shown in the illustration.





Torque : 16 Nm (163 kgf-cm, 12 ft-lbf)

NOTICE:
Thoroughly wipe clean any seal packing.

3. INSTALL NO. 3 CHAIN TENSIONER ASSEMBLY Reassembly

4. INSTALL CHAIN SUB-ASSEMBLY (for Bank 1) Reassembly

5. INSTALL CHAIN TENSIONER SLIPPER (for Bank 1) Reassembly

6. INSTALL NO. 1 CHAIN TENSIONER ASSEMBLY (for Bank 1) Reassembly

7. INSTALL NO. 1 CHAIN VIBRATION DAMPER (for Bank 1) Reassembly

8. TIGHTEN CAMSHAFT TIMING GEAR ASSEMBLY

(a) Using a wrench, hold the hexagonal portion of the No. 3 camshaft.





(b) Using a 12 mm socket hexagon wrench, tighten the camshaft timing gear assembly with a new bolt.

Torque : 79 Nm (806 kgf-cm, 58 ft-lbf)

(c) Using a wrench to hold the hexagonal portion of the No. 4 camshaft, tighten the camshaft timing exhaust gear assembly with the bolt.





Torque : 100 Nm (1020 kgf-cm, 74 ft-lbf)

9. CHECK NO. 1 CYLINDER TO TDC/COMPRESSION Reassembly

10. INSTALL TIMING CHAIN COVER SUB-ASSEMBLY

HINT
Installation.

11. CONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

NOTICE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected Repair Instruction - Initialization.