Mechanics

CHEVY HEAD GASKET

1998 Chevrolet Cavalier

Engine Mechanical problem
1998 Chevy Cavalier 4 cyl Front Wheel Drive Automatic

How to replace a head gasket?
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Herbert
October 4, 2008.




2.2L 4-CYL. VIN [4] -1998 Chevrolet Cavalier
Page 1 of 1

NOTE: When removing valve train components, keep them in order to ensure installation in same location.

CYLINDER HEAD
Removal (Cavalier & Sunfire)
1. Release fuel system pressure. See FUEL PRESSURE RELIEF. Disconnect negative battery cable. Remove air cleaner and intake duct. Remove serpentine drive belt. Remove upper engine mount. Remove intake manifold. See INTAKE MANIFOLD. Remove exhaust manifold. See EXHAUST MANIFOLD. 2. Drain cooling system. Remove valve cover, rocker arms and push rods. Remove generator rear brace and generator. Remove power steering pump and set aside with lines attached. Remove radiator inlet pipe. Remove ignition coil assembly and accessory bracket. Remove spark plug wires. Install Engine Support Fixture (J-28467-360). Remove cylinder head bolts. Remove cylinder head.
Removal (S10 Pickup & Sonoma)
1. Release fuel system pressure. See FUEL PRESSURE RELIEF. Disconnect negative battery cable. Remove air intake duct. Disconnect exhaust pipe from exhaust manifold. Remove serpentine belt. Drain cooling system. Remove power steering pump and set aside with hoses attached. Remove exhaust manifold. See EXHAUST MANIFOLD. 2. Remove upper radiator hose and disconnect heater hoses from heater core. Remove rear generator bracket and generator. Remove cooling fan and serpentine belt idler pulley. Remove heater hose pipe bracket bolt from cleaner outlet resonator bracket and remove thermostat housing. Remove accessory bracket. Remove valve cover, rocker arms and push rods. Disconnect fuel lines from fuel rail. Remove cylinder head bolts. Remove cylinder head.

Inspection
Inspect cylinder head for warpage at head gasket surface and manifold surfaces. See CYLINDER HEAD table under ENGINE SPECIFICATIONS. DO NOT remove more than.010 (.25 mm) of material from head gasket surface.

Installation
Clean threads of cylinder head bolts and cylinder block holes. Install NEW head gasket. Install cylinder head. Tighten cylinder head bolts to specification in proper sequence. See TORQUE SPECIFICATIONS. See Fig. 4. To complete installation, reverse removal procedure.
Fig. 4: Cylinder Head Bolt Tightening Sequence Courtesy of GENERAL MOTORS CORP.

10/4/2008

Merlin2021
Oct 4, 2008.


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