REMOVAL & INSTALLATION

2.2L Engines

1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
2. Remove or disconnect the following:
3. Negative battery cable
4. Timing belt covers, timing belt and camshaft sprockets
5. Valve rocker covers
6. Rocker arm assemblies. Refer to the rocker arms/shafts procedure in this section.
7. Camshaft cap bolts in the proper sequence
8. Camshaft cap

   Fig. 2: Camshaft cap bolt loosening sequence-1999-01 2.2L and 2.5L engines

9. To remove the left camshaft, remove or disconnect the following:
   • Camshaft Position (CMP) sensor
   • Oil dipstick tube attaching bolt and the dipstick tube
   • CMP sensor support
10. To remove the right camshaft, remove the camshaft support on the right side.
11. Remove or disconnect the following:
    • Camshaft O-ring
    • Camshaft and rear seal
    • Oil seal from the camshaft support

    To install:

    NOTE: Lubricate the camshaft journals with clean engine oil prior to installation.

12. Install or connect the following:
    • Rear oil seal, then the camshaft into the cylinder head
13. Apply a bead of sealant in the camshaft cap. Position the camshaft cap, then tighten the bolts 7-10, in sequence, temporarily
14. Install the rocker arm assemblies. Refer to the rocker arms/shafts procedure in this section.
15. Tighten the remaining camshaft cap bolts, in sequence, as follows:
    1. Step 1: bolts 1-8: 17-20 ft. lbs. (23-27 Nm).
    2. Step 2: bolts 9-14: 12-15 ft. lbs. (16-20 Nm).
    3. Step 3: bolts 15-22: 6-9 ft. lbs. (8-12 Nm), using SST 499497000.
    4. Step 4: bolts 23-24: 6-9 ft. lbs. (8-12 Nm).

       Fig. 3: Camshaft cap bolt locations 1-8-1999-01 2.2L and 2.5L engines

       Fig. 4: Camshaft cap bolt locations 9-14-1999-01 2.2L and 2.5L engines

       Fig. 5: Camshaft cap bolt locations 15-22-1999-01 2.2L and 2.5L engines

       Fig. 6: Camshaft cap bolt locations 23-24-1999-01 2.2L and 2.5L engines

16. To install the left camshaft, install or connect the following:
    • O-ring into the camshaft support and install the support. Tighten the front retainer bolts to 84 inch lbs. (9 Nm), and the rear bolts to 12 ft. lbs. (16 Nm).
    • Oil seal into the camshaft support
    • Dipstick tube. Tighten the retaining bolt to 10 ft. lbs. (13 Nm).
    • CMP sensor
17. To install the right camshaft, install or connect the following:
    • O-ring into the camshaft support and install the support. Tighten the retainer bolts to 12 ft. lbs. (16 Nm).
    • New oil seal in the rear of the cylinder head
18. Install or connect the following:
    • Camshaft sprockets, timing belt, timing belt covers, and related components
    • Negative battery cable
19. Check the fluid levels and start the engine.
20. Allow the engine to reach normal operating temperature and check for leaks.

2.5L Engine

1998 VEHICLES

1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
2. Remove or disconnect the following:
   • Negative battery cable
   • Timing belt covers, timing belt and camshaft sprockets
   • Camshaft Position (CMP) sensor
   • Ignition coils
   • Valve rocker covers and gaskets
   • Loosen the intake camshaft cap bolts in sequence, in small increments

   NOTE: Be sure to keep the intake and exhaust bearing caps and camshafts in proper order for reassembly.

3. Intake camshaft bearing caps and the camshaft
4. Loosen the exhaust camshaft cap bolts in sequence, in small increments
5. Exhaust camshaft bearing caps and the camshaft

   To install:

   NOTE: Lubricate the camshaft bearings prior to camshaft installation.

6. Position the camshafts so the base circle (non-lobe portion) of the camshafts are in contact with the lash adjusters. This will position the lobes of the camshafts away from the valves.

   NOTE: The left camshaft will need to be rotated for timing belt alignment.

7. Apply liquid sealant to the front bearing cap mating surfaces, then install the bearing caps. Tighten the caps in sequence in 2 progressive steps to 14 ft. lbs. (20 Nm).
8. Install or connect the following:
   • New oil seals to the camshafts using a suitable seal installation tool
   • Rocker covers using new gaskets. Be sure to apply liquid sealant to the front edges of the gasket at the camshaft opening.
   • Ignition coils
   • CMP sensor
   • Camshaft sprockets, tighten the retaining bolts to 58 ft. lbs. (78 Nm). Be sure to secure the sprockets when tightening the bolts.

   WARNING
   Only rotate camshafts the specified amount. If the camshafts are rotated beyond the specified amount, the valves will contact each other and cause severe internal damage.

9. For correct timing belt alignment, rotate the intake camshaft 80 degrees clockwise and the exhaust camshaft 45 degrees counterclockwise.
10. Check the timing sprockets for proper alignment and install the timing belt.
11. Connect the negative battery cable.
12. Check the fluid levels and start the engine.
13. Allow the engine to reach operating temperature and check for leaks.

1999-03 VEHICLES

1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
2. Remove or disconnect the following:
3. Negative battery cable
4. Timing belt covers, timing belt and camshaft sprockets
5. Valve rocker covers
6. Rocker arm assemblies. Refer to the rocker arms/shafts procedure in this section.
7. Camshaft cap bolts in the proper sequence
8. Camshaft cap
9. Camshaft and rear seal
10. Oil seal from the rear side of the camshaft

    To install:

    NOTE: Lubricate the camshaft journals with clean engine oil prior to installation.

11. Install the camshaft into the cylinder head
12. Apply a bead of sealant in the camshaft cap. Position the camshaft cap, then tighten the bolts 7-10, in sequence, temporarily
13. Install the rocker arm assemblies. Refer to the rocker arms/shafts procedure in this section.
14. Tighten the remaining camshaft cap bolts, in sequence, as follows:
    1. Step 1: bolts 1-8: 17-20 ft. lbs. (23-27 Nm).
    2. Step 2: bolts 9-14: 12-15 ft. lbs. (16-20 Nm).
    3. Step 3: bolts 15-22: 6-9 ft. lbs. (8-12 Nm), using SST 499497000.
    4. Step 4: bolts 23-24: 6-9 ft. lbs. (8-12 Nm).
15. Install or connect the following:

    NOTE: Lubricate the seals lips with clean engine oil prior to installation

16. Oil seal and plug with suitable tools
17. Camshaft sprockets, timing belt, timing belt covers, and related components
18. Negative battery cable
19. Check the fluid levels and start the engine.
20. Allow the engine to reach normal operating temperature and check for leaks.