Cylinder Head - Installation

INSTALLATION






NOTE: Left side shown, right side similar.

1. If removed, using a new exhaust manifold gasket, position the exhaust manifold and install the retaining bolts finger tight.
2. Using the sequence shown, tighten the retaining bolts to 31 Nm (23 ft. lbs.).






CAUTION: The cylinder head gaskets (1) are not interchangeable between left and right sides. They are marked "UP" to indicate direction to face up and "L" or "R" to indicate left side or right side of engine block.

NOTE: Left side shown, right side similar.

3. Clean all sealing surfaces of the engine block and the cylinder head(s) (2).

NOTE: Rotate crankshaft 45° so that all pistons are 1/2 the way down the cylinder bore to avoid piston to valve contact.

4. Position the new cylinder head gasket(s) (1) onto the engine block.
5. Position the cylinder head(s) (2) onto the engine block.
6. Install the cylinder head bolts finger tight.

CAUTION: The 6.4L engine uses a unique 4 layer steel head gasket that must be compressed evenly and completely across the deck surface for proper sealing. The tightening sequence must be followed to ensure all layers are compressed before applying the additional 90 degree turn.





7. Using the sequence below, tighten the retaining bolts.
- Using the sequence shown, tighten bolts 1-10 to 34 Nm (25 ft. lbs.).
- Using the sequence shown, tighten bolts 11-15 to 20 Nm (15 ft. lbs.).
- Using the sequence shown, tighten bolts 1-10 to 54 Nm (40 ft. lbs.).
- Using the sequence shown, verify bolts 11-15 are 20 Nm (15 ft. lbs.).
- Using the sequence shown, tighten bolts 1-10 to 61 Nm (45 ft. lbs.).
- Using the sequence shown, rotate bolts 1-10 an additional 90 degrees.
- Using the sequence shown, tighten bolts 11-15 to 34 Nm (25 ft. lbs.).





CAUTION: Pushrods and rocker arm assemblies must be installed in their original locations or engine damage could result.

8. Install the pushrods and rocker arms Valve Rocker Arm - Installation.
9. If removed, install the oil dip stick tube and tighten the retaining nut at the exhaust manifold.





10. Position the cylinder head covers, using the sequence shown, tighten the cylinder head cover bolts to 8 Nm (70 lbs in.)Cylinder Head Cover(s) - Installation.





11. Install the power steering pump Power Steering Pump - Installation.






CAUTION: Do not let the tensioner arm snap back to the freearm position, sever damage may occur to the tensioner.

12. Rotate the accessory drive belt tensioner (8) clockwise until it contacts it's stop, install the accessory drive belt (2), then slowly release the tensioner into position Serpentine Accessory Drive Belt - Installation.






NOTE: Left side shown, right side similar.

13. Raise and support the vehicle.
14. Install the catalytic converters Catalytic Converter - Installation.





15. Lower the vehicle.
16. Connect the heater hoses (1,2).
17. Install the intake manifold and throttle body as an assembly Intake Manifold - Installation.
18. Connect the fuel supply line.





19. Install the engine covers (1).





20. Fill cooling system Service and Repair.
21. Connect the negative battery cable (1).
22. Start engine check for leaks.