INSPECTION
- Inspect the cylinder head for out-of-flatness using a straightedge and a feeler gauge. If tolerances exceed 0.0508 mm (0.002 in.) replace the cylinder head.
- Inspect the valve seats for damage. Service the valve seats as necessary.
- Inspect the valve guides for wear, cracks or looseness. If either condition exist, replace the cylinder head.
- Inspect the pushrods. Replace worn or bent pushrods.
Scheme 54
Scheme 55
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Scheme 57
- Clean all surfaces of cylinder block and cylinder heads.
- Clean cylinder block front and rear gasket surfaces using a suitable solvent. CAUTION: The cylinder head gaskets are not interchangeable between the left and right sides. They are marked with an "L" and "R" to indicate the left or right side and they are marked "TOP" to indicate which side goes up. CAUTION: The head gaskets are marked "TOP" to indicate which side goes up.
- Position the new cylinder head gasket onto the cylinder block.
- Position cylinder head onto head gasket and cylinder block.
- Using the sequence shown in illustration, tighten the cylinder head bolts 1 through 10 to 34 N.m (25 ft. lbs.).
- Using the sequence shown in illustration, tighten the cylinder head bolts 11 through 15 to 20 N.m (15 ft. lbs.).
- Using the sequence shown in illustration, tighten the cylinder head bolts 1 through 10 to 54 N.m (40 ft. lbs.).
- Using the sequence shown in illustration, tighten the cylinder head bolts 11 through 15 to 20 N.m (15 ft. lbs.).
- Using the sequence shown in illustration, rotate the cylinder head bolts 1 through 10 90°.
- Using the sequence shown in illustration, tighten the cylinder head bolts 11 through 15 to 34 N.m (25 ft. lbs.).
- Install the push rods and rocker arm assemblies in their original position, using Pushrod Retainer (special tool #9070, Retainer, Push Rod) (1). Refer to «ROCKER ARM, VALVE, INSTALLATION, 5.7L»(ref-476518-S00844730812012060400000) .
- Install the intake manifold. Refer to «MANIFOLD, INTAKE, INSTALLATION, 5.7L»(ref-476518-S24872514842012060400000) .
- Install the spark plugs.
- Connect the heater hoses (2).
- Connect the fuel supply line.
- Install the three power steering pump mounting bolts (2) through the access holes in the pulley and tighten bolts to 28 N•m (21 ft. lbs.).
- Install the accessory drive belt. Refer to «BELT, SERPENTINE, INSTALLATION»(ref-476513-S03685655272012060400000) .
- Install the cylinder head cover (1) and hand start all fasteners. Verify that all double ended studs (3) are in the correct location. Refer to «COVER(S), CYLINDER HEAD, INSTALLATION, 5.7L»(ref-476518-S24184402652012060400000) .
- Using the sequence shown in illustration, tighten the cylinder head cover bolts and double ended studs to 8 N.m (70 in. lbs.).
- Connect the evaporation control system.
- Install the air cleaner.
- Install cowl grille (4).
- Install the engine cover (1). Refer to «COVER, ENGINE, INSTALLATION, 5.7L»(ref-476518-S33162728662012060400000) .
- Fill the cooling system. Refer to «STANDARD PROCEDURE»(ref-476513-S07101829012012060400000) .
- Drain and fill the engine with new oil.
- Connect the negative battery cable (2).
- Start the engine and check for leaks.
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Scheme 61
- Disconnect and isolate the negative battery cable (1).
- Remove the engine cover (2). Refer to «COVER, ENGINE, INSTALLATION, 5.7L»(ref-476518-S33162728662012060400000) . NOTE: Right side shown in illustration, left side similar.
- Disconnect the ignition coil electrical connectors (1).
- Position the electrical harness (2) aside.
- Remove the ignition coil retaining bolts (3) and remove the ignition coils.
- Using the sequence shown in illustration, remove the cylinder head cover retaining bolts. CAUTION: Do not use harsh cleaners to clean the cylinder head covers. Severe damage to covers may occur.
- Remove the cylinder head cover (1).
- Clean the sealing surface of the cylinder head (2) and cover.
Note. The cylinder head cover gasket may be used again, provided no cuts, tears, or deformation have occurred.