Installation [12/2019 - 10/2022]: Procedure

1. Clean the vacuum pump assembly installation bolt holes in the camshaft housing sub-assembly and cylinder head sub-assembly.
2. When using a new vacuum pump assembly:
   1. Apply engine oil to the No. 2 O-ring and No. 3 O-ring which are installed to a new vacuum pump assembly.

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      *1	No. 2 O-ring
      *2	No. 3 O-ring
      	Engine Oil

3. When reusing the vacuum pump assembly:
   1. Apply engine oil to a new No. 2 O-ring and No. 3 O-ring and install them to the vacuum pump assembly.

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      *1	No. 2 O-ring
      *2	No. 3 O-ring
      	Engine Oil

4. Apply engine oil to the inner surface of the installation hole.
5. Temporarily install the vacuum pump assembly so that the oil pipe engages with the hole of the camshaft and the coupling teeth engage with the groove of the camshaft.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Coupling Teeth
   *b	Groove
   *c	Oil Pipe
   	Install in this Direction

   NOTE:

   • Ensure that the vacuum pump assembly is installed securely.
   • Be careful not to pinch the O-ring.
6. Install the vacuum pump assembly with 3 new bolts.
   Fig 1: Vacuum Pump Assembly Bolts Tightening Sequence

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Torque: 21 N.m (214 kgf/cm, 15 ft.lbf) 

   NOTE:

   • After installation, check that there are no gaps between the matching surfaces and that the vacuum pump assembly is not installed at an angle.
   • Tighten the 3 bolts in the order shown in the illustration.

1. Connect the air tube to the vacuum pump assembly and slide the clip to secure it.

1. Install the earth wire with the bolt.

   Torque: 10 N.m (102 kgf/cm, 7 ft.lbf) 

2. Install the engine wire with the 2 bolts.

   Torque: 10 N.m (102 kgf/cm, 7 ft.lbf) 

1. Engage the clamp to install the breather plug hose.

1. Engage the clamp to install the vacuum hose sub-assembly.

1. Engage the clamp to install the inlet heater water hose B.

1. Install the No. 2 surge tank stay with the 2 bolts.

   Torque: 21 N.m (214 kgf/cm, 15 ft.lbf) 

Refer to INSTALLATION [12/2019 - 10/2022]

1. Install the battery clamp sub-assembly with the 3 bolts and nut.

   Bolt 

   Torque: 18.5 N.m (189 kgf/cm, 14 ft.lbf) 

   Nut 

   Torque: 8.0 N.m (82 kgf/cm, 71 in.lbf) 

2. Engage the 5 clamps to the battery clamp sub-assembly.

Refer to PROCEDURE - Step 50 [12/2019 - 09/2020] , or refer to PROCEDURE - Step 50 [09/2020 - 10/2022]

Refer to INSTALLATION [12/2019 - 10/2022]

Refer to ON-VEHICLE INSPECTION [12/2019 - 10/2022]