Primary Timing Chain Tensioner Removal and Installation

Primary Timing Chain Tensioner Removal and Installation

Removal

NOTE:

When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spilling.

1) Remove engine room cover. Refer to [Engine Room Cover: Removal and Installation] Service and Repair.
2) Remove engine under cover (if equipped). Refer to [Front Bumper: Removal and Installation] Service and Repair.
3) Partially drain engine coolant. Refer to [Changing Engine Coolant] Service and Repair.
4) Remove lower fan shroud. Refer to [Radiator: Exploded View] Exploded View.
5) Disconnect crankcase ventilation hose and remove air duct and resonator assembly. Refer to [Air Cleaner and Air Duct: Removal and Installation] Removal and Installation.
6) Disconnect MAF sensor and remove air cleaner case (upper). Refer to [Air Cleaner and Air Duct: Removal and Installation] Removal and Installation.
7) Remove coolant reservoir hose.
8) Disconnect upper radiator hose from radiator.
9) Disconnect and remove engine cooling fan (Motor driven type). Refer to [Engine Cooling Fan: Removal and Installation (Motor driven type)] Motor Driven Type.
10) Remove upper fan shroud. Refer to [Radiator: Exploded View] Exploded View.
11) Remove drive belt. Refer to [Drive Belts: Removal and Installation] Removal and Installation.
12) Remove drive belt auto-tensioner. Refer to [Drive Belt Auto-Tensioner and Idler Pulley: Removal and Installation] Service and Repair.
13) Remove chain tensioner cover.
14) Remove timing chain tensioner (primary) as follows:
a) Loosen clip of timing chain tensioner (primary), and release plunger stopper (1).





b) Depress plunger into tensioner body by pressing slack guide (2).
c) Keep slack guide pressed and insert stopper pin through the tensioner body hole and plunger groove (3) to hold plunger in.
- Use stopper pin included with Tool J-50246.
d) Remove timing chain tensioner bolts and remove timing chain tensioner (primary).






CAUTION:
Be careful not to drop timing chain tensioner bolts inside timing chain case.

Installation

Installation is in the reverse order of removal.

- When installing timing chain tensioner (primary), push in plunger and keep it pressed in with stopper pin.
- Remove any dirt and foreign materials completely from the back and the mounting surfaces of primary timing chain tensioner.
- After installation, pull out stopper pin.