Removal and Installation

REMOVAL
1. Perform fuel system pressure release procedure before attempting any repairs.
2. Disconnect negative cable from battery.
3. Drain cooling system.
4. Remove air inlet tube and housing.
5. Disconnect all vacuum lines, electrical wiring, ground straps, and fuel line.
6. Remove throttle linkage.
7. Remove throttle body support and intake manifold support brackets.
8. Remove EGR tube.
9. Remove heater tube support bracket from cylinder head.
10. Disconnect upper radiator and heater hoses from intake manifold water outlet connections.
11. Remove fastener attaching dipstick tube to cylinder head.
12. Remove accessory drive belts.
13. Remove power brake vacuum hose from intake manifold.
14. Raise vehicle and remove exhaust pipe from manifold.
15. Remove power steering pump reservoir and line support bracket from cylinder head and set aside.
16. Disconnect coil pack wiring connector and remove coil pack and plug wires from engine.
17. Remove cam sensor and fuel injectors wiring connectors.
18. Remove timing belt and camshaft sprockets.
19. Remove timing belt idler pulley and rear timing belt cover.
20. Remove cylinder head cover.
21. Remove camshafts and cam followers.
22. Remove cylinder head bolts and remove cylinder head from engine block.
23. Inspect and clean cylinder head. Refer to Cleaning and Inspection for procedures.

INSTALLATION

Checking Bolts For Stretching (Necking):

NOTE: The cylinder head bolts should be examined BEFORE reuse. If the threads are necked down, the bolts should be replaced.

Necking can be checked by holding a scale or straight edge against the threads. If all the threads do not contact the scale, the bolt should be replaced.
1. Before installing the bolts, the threads should be coated with engine oil.

Cylinder Head Tightening Sequence:

2. Tighten the cylinder head bolts in sequence. Using the 4 step torque turn method, tighten according to the following values:
^ First All to 34 Nm (25 ft. lbs.)
^ Second All to 68 Nm (50 ft. lbs.)
^ Third All to 68 Nm (50 ft. lbs.)

CAUTION: Do not use a torque wrench for the following step.

^ Fourth Turn an additional 1/4 Turn

3. Install camshafts and cam followers.
4. Install cylinder head cover.
5. Install rear timing belt cover and timing belt idler pulley.
6. Install timing belt and camshaft sprockets.
7. Install cam sensor and fuel injectors wiring connectors.
8. Install coil pack and plug wires onto the engine. Connect coil pack wiring connector.
9. Install power steering pump reservoir and line support bracket to cylinder head.
10. Raise vehicle and install the exhaust pipe to the manifold.
11. Install power brake vacuum hose to the intake manifold.
12. Install accessory drive belts.
13. Install throttle body support and intake manifold support brackets.
14. Install heater tube support bracket to cylinder head.
15. Connect upper radiator and heater hoses to intake manifold water outlet connections.
16. Using new gaskets, install EGR tube and tighten fasteners to 11 Nm (95 inch lbs.).
17. Install fastener attaching dipstick tube to cylinder head.
18. Install throttle linkage.
19. Install air inlet tube and housing.
20. Connect all vacuum lines, electrical wiring, ground straps and fuel line.
21. Fill cooling system.
22. Connect negative cable to battery.