Elements of the gas distribution mechanism (Discovery 3)

Special tool

Crankshaft Turning Tool 303-674

Removal

NOTE: This section covers the removal and installation of the following components: primary timing chain tensioner, timing chain guide, intermediate shaft sprocket, crankshaft sprocket, and timing chain.

1. Disconnect the ground cable from the battery. For more information, refer to Specification

2. Remove the engine front cover. For more information, refer to Engine Front Cover (12.65.01)

3. Remove the primary timing chain tensioner. Remove 2 bolts.



4. Remove the primary timing chain tensioner guide. Remove 2 bolts.



5. Install the special tool on the crankshaft.



6. Remove the intermediate shaft sprocket.

• Using the additional key and special tool, lock the intermediate shaft sprocket.
• Remove and discard the Torx head bolt.

7.

NOTE: Make a note of the position of the part.

Remove the crankshaft sprocket. Remove the primary timing chain.

Installation

1. Install the primary timing chain.

• Clean the contact surfaces of the parts.
• Install the crankshaft sprocket so that the recess is on the crankshaft side.
• Install the special tool on the crankshaft.

2. Install the intermediate shaft sprocket.

• Clean the contact surfaces of the parts.
• Install the primary timing chain onto the sprockets.
• Install a new Torx head bolt and tighten it lightly.

3. Install the timing chain guide.

• Clean the contact surfaces of the parts.
• Tighten the bolts (tightening torque 20 Nm).

4. Install the timing chain tensioner.

• Clean the contact surfaces of the parts.
• Tighten the bolts to 10 Nm.

5. Tighten the new Torx head bolt to 45 Nm, then turn it another 70 degrees.

6. Install the engine front cover. For more information, refer to Engine Front Cover (12.65.01)

7. Adjust the valve timing. For more information, refer to Valve Timing

8. Connect the ground cable to the battery. For more information, refer to Specifications

[The publication was copied from a web resource: lrman.ru]