Cylinder Head Assembly: Service and Repair

Fig. 3 Cylinder Head Tightening Sequence:

1. Remove intake manifold as outlined under INTAKE MANIFOLD.
2. Remove exhaust manifolds as outlined under EXHAUST MANIFOLD.
3. Remove valve covers.
4. For left cylinder head removal, remove alternator bracket with ignition module and coils attached.
5. Remove A/C compressor bracket bolt, then power steering pump. Position pump aside.
6. For right cylinder head removal, remove serpentine drive belt, then tensioner assembly.
7. For either cylinder head removal, remove spark plug wires, rocker arm assemblies, guide plate and pushrods.
8. Remove cylinder head attaching bolts, then cylinder head.
9. Reverse procedure to install, noting the following:
a. Apply sealant No. 1052080 or equivalent to underside of cylinder head bolt heads.
b. Apply thread locker No. 12345382 or equivalent to bolt threads.
c. Using sequence shown in Fig. 3, torque cylinder head bolts to 35 ft. lbs.
d. Rotate each bolt an additional 130° using sequence shown in Fig. 3, then rotate the center four bolts 30° using the same sequence.
e. Apply thread locker No. 12345493 or equivalent to rocker arm pedestal bolts before assembly.
f. Torque all bolts/nuts to specifications.