Camshafts

Camshafts

Special Tool(s):

Material:

Removal
Both sides
1. Remove the camshaft roller followers.
2. NOTE: The RH and LH camshaft timing procedure must be carried out when either camshaft is serviced.

Rotate the crankshaft clockwise to position the No. 1 cylinder at TDC.

3. CAUTION: Do not rotate the engine counterclockwise. Rotating the engine counterclockwise will result in incorrect timing of the engine.

NOTE: The special tool must be installed on the damper and should contact the engine block. This positions the piston at TDC.

Install the special tool.





RH side
4. Install the special tools on the rear of the RH cylinder head and tighten the top 2 clamp bolts to 10 Nm (89 inch lbs.).





5. CAUTION: The RH camshaft sprocket is a LH-threaded bolt.

Using the special tool and the Camshaft Sprocket Nut Socket, loosen the camshaft sprocket bolt.





6. Remove the bolt and position the RH camshaft sprocket aside.





LH side
7. Install the special tools on the front of the LH camshaft and tighten the 2 top clamp bolts to 10 Nm (89 inch lbs.).





8. Loosen the bolt.





9. Remove the bolt and position the LH camshaft sprocket aside.





Both sides
10. NOTE: Mark the position of the camshaft bearing caps so they can be installed in their original positions.

Remove the bolts in the sequence shown and remove the camshaft bearing caps and the oil supply tube.





11. Remove the camshaft.

Installation
Both sides

1. NOTE: Lubricate the camshafts with clean engine oil.

Install the camshaft.

2. NOTE: Lubricate the camshaft bearing caps with clean engine oil.

NOTE: The camshaft bearing caps must be installed in their original positions.

NOTE: After installing the bolts, check the camshaft for free rotation.

Position the oil supply tube, the camshaft bearing caps and the bolts.

- Tighten the bolts in the sequence shown in 2 stages.
^ Stage 1: Tighten to 6 Nm (53 inch lbs.).
^ Stage 2: Tighten to 16 Nm (12 ft. lbs.).





RH side

3. CAUTION: The camshaft gear must turn freely on the camshaft. DO NOT tighten the bolt at this time.

Install the RH camshaft sprocket and loosely install the bolt.





LH side

4. CAUTION: The camshaft gear must turn freely on the camshaft. DO NOT tighten the bolt at this time.

Install the LH camshaft sprocket and loosely install the bolt.





Both sides
5. Retime the camshafts.
6. Install the camshaft roller followers.