Right camshaft (Discovery 3)

Removing

1. Disconnect the wire "masses" from the battery. For more information refer to Specification.

2. Remove the front camshaft oil seal. For more information refer to Front Camshaft Seal (12.13.44)

3. Remove the vacuum pump of the brake system. For more information refer to Brake Vacuum Pump - 2.7L Diesel (70.50.19)

4. Remove a cover of the right head of cylinders. For more information, refer to Right Valve Cover (12.29.44)

5. Hold the secondary timing chain tensioner piston.

• Install the secondary timing chain tensioner.
• Insert a pin with a diameter of 1.5 mm (0.060 inch) into the secondary timing chain tensioner piston.

6.

CAUTION: Gradually and evenly loosen the camshaft bearing caps.

Remove the camshaft bearing caps. Remove 18 bolts.



7. Remove the camshafts with the secondary timing chain tensioner assembly.

• Turn out 2 bolts.
• Release the right secondary timing chain tensioner.

8. Remove the secondary timing chain tensioner.



9. Remove the right camshafts. Remove the secondary timing chain from the right camshafts.

Installation

1. Fit the secondary timing chain onto the camshafts.


2.

CAUTION: Do not release the pin securing the secondary timing chain tensioner until all camshaft bearing caps have been installed.

Install the secondary timing chain tensioner. Align the marks on the camshafts with the marks on the secondary timing chain.



3. Install the camshafts with the secondary timing chain tensioner assembly. Lubricate the journals and camshaft cams.

4. Install the right secondary timing chain tensioner. Tighten 2 fixing bolts (tightening torque 10 Nm).

5. Install the camshaft bearing caps.

• Do not install the exhaust camshaft bearing caps at this stage yet.
• The bolts are tightened in the specified sequence in three stages. Stage 1: tightening torque 1 Nm.
• Stage 2: tightening torque 5 Nm.
• Stage 3: tightening torque 10 Nm.

6. Apply sealant to both camshaft bearing caps as shown. For more information refer to Specification.




7. Install the camshaft bearing caps.

• The bolts are tightened in the specified sequence in three stages.
• Stage 1: tightening torque 1 Nm.
• Stage 2: tightening torque 5 Nm.
• Stage 3: tightening torque 10 Nm.

8. Release the secondary timing chain tensioner piston. Remove lock pin.

9. Remove a cover of the right head of cylinders. For more information, refer to Right Valve Cover (12.29.44)

10. Install the brake vacuum pump. For more information refer to Brake Vacuum Pump - 2.7L Diesel (70.50.19)

11. Install the front camshaft oil seal. For more information refer to Front Camshaft Seal (12.13.44)

12. Connect the wire "masses" to the battery. For more information refer to Specification.