Disassembly Procedure
- Remove the cylinder head with the intake manifold and the exhaust manifold attached. Refer to Camshaft Replacement .
- Remove the coolant temperature sensor (CTS).
- Remove the exhaust manifold heat shield bolts.
- Remove the exhaust manifold heat shield.
- Remove the exhaust manifold retaining nuts in the sequence shown.
- Remove the exhaust manifold.
- Remove the exhaust manifold gasket.
- Remove the exhaust manifold studs.
- Remove the thermostat housing mounting bolts.
- Remove the thermostat housing assembly.
- Remove the fuel rail retaining bolts and the fuel rail assembly.
- Remove the intake manifold retaining nuts and retaining bolts in the sequence shown.
- Remove the intake manifold.
- Remove the intake manifold studs.
- Remove the direct ignition system (DIS) coil mounting bolts.
- Remove the DIS coil with the ignition wires attached.
- Remove the DIS coil mounting bracket bolts.
- Remove the electrical exhaust gas recirculation (EEGR) valve adapter bolts.
- Remove the EGR valve adapter bolts.
- Remove the EGR valve adapter.
- Remove the EGR valve adapter gasket.
- Remove the spark plugs.
- Remove the camshaft cap bolts gradually and in the sequence shown for each camshaft cap.
- Remove the intake camshaft caps. Maintain the correct positions for installation.
- Remove the intake camshaft.
- Remove the intake valve tappet adjusters.
- Remove the exhaust camshaft caps. Maintain the correct positions for installation.
- Remove the exhaust camshaft.
- Remove the exhaust valve tappet adjusters.
- Compress the valve springs with J 8062 and KM-653-A .
- Remove the valve keys.
- Remove the J 8062 and KM-653-A .
- Remove the valve spring caps.
- Remove the valve springs. Maintain the original position of the valve springs for installation.
- Remove the valves. Maintain the original position of the valves for installation.
- Remove the valve stem seals.
CAUTION:
Valve springs can be tightly compressed. Use care when removing the retainers and plugs. Personal injury could result.