Secondary Camshaft Drive Chain Replacement (Front)

REMOVAL PROCEDURE

^ Tools Required
- J 42038 Camshaft Holding Fixture
- J 42042 Timing Chain/Sprocket Holding Fixture





1. Partially drain the cooling system.
2. Disconnect the thermostat housing for J 42042 access.
3. Remove the left (front) camshaft cover.
4. Install the J 42038 on to the left (front) camshafts.
5. Remove the camshaft sprocket bolts.





6. Install the J 42042 on to the left (front) cylinder head.
7. Evenly slide the secondary drive chain and camshaft sprockets off the camshafts on to the J 42042.
8. Inspect the secondary drive chain tensioner.


INSTALLATION PROCEDURE

^ Tools Required
- J 36660 Electronic Torque Angle Meter
- J 42038 Camshaft Holding Fixture
- J 42042 Timing Chain/Sprocket Holding Fixture





1. Install the secondary timing chain. Align the drive pins as shown.
Align the exhaust sprocket drive pin (1) between the two darkened links (2).
Align the intake sprocket drive pin (4) with the single darkened link (3).





2. Slide the intake and exhaust camshaft sprockets off of the J 42042 and onto their respective camshafts and align the drive pins (1,4) in the camshafts. Make sure the chain is properly aligned on the drive chain tensioner.





3. Remove the J 42042 from the left (front) cylinder head.

Notice: Refer to Fastener Notice in Service Precautions.

4. Install the intake camshaft sprocket bolt and exhaust camshaft sprocket bolt.
4.1. Tighten the camshaft sprocket bolts to 25 Nm (18 ft. lbs).
4.2. Use the J 36660 in order to tighten the camshaft sprocket bolts an additional 45°.





5. Remove the J 42038 from the left (front) camshafts.
6. Install the left (front) camshaft cover.
7. Install the thermostat housing.
8. Fill the cooling system with engine coolant.