Installation [02/2017 - ]: Procedure

1. When installing 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

2. 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

3. Apply engine oil to the inner surface of the installation hole.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Coupling Teeth
   *b	Groove
   	Engine Oil

4. Install the vacuum pump assembly so that the coupling teeth of the vacuum pump assembly and the groove of the camshaft are engaged.
   NOTE:

   Ensure that the vacuum pump assembly is installed securely.

5. Install the 3 bolts.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   NOTE:

   After tightening the bolts, ensure that the contact surface of the vacuum pump assembly is flush with the cylinder head.

   HINT: 

   LENGTH OF THE BOLT
   
   

   Bolt A	25 mm (0.984 in.)
   Bolt B	45 mm (1.77 in.)

6. Connect the union to connector tube hose to the vacuum pump assembly and slide the clip to secure it.

1. Connect the union to connector tube hose to the vacuum pump assembly and slide the clip to secure it.

Refer to PROCEDURE - Step 6 [02/2017 - 10/2017] , or refer to PROCEDURE - Step 7 [10/2017 - 12/2021] , or refer to PROCEDURE - Step 6 [12/2021 - ]

Refer to PROCEDURE - Step 4

Refer to INSTALLATION [02/2017 - 08/2020] , or refer to INSTALLATION [08/2020 - ]

See step  1