- Lubricate the valve stems with engine oil.
- Carefully install the valves in their original positions.
- Install the valve springs in their original positions.
- Install the valve spring caps.
- Compress the valve springs with the valve spring compressor
EN 47518 and the
KM-635 .
- Install the valve keys.
- Remove the valve spring compressor KM-348 and the
KM-635 .
- Lubricate the valve tappet adjusters with engine oil.
- Install the valve tappet adjusters.
- Install the intake camshaft.
- Install the intake camshaft bearing caps in their original positions.
- Install the exhaust camshaft.
- Install the exhaust camshaft bearing caps in their original positions.
Caution: Refer to Fastener Caution in the Preface section.
- Install the camshaft bearing cap bolts gradually in the sequence shown for each camshaft cap.
Tighten
Tighten the camshaft bearing cap bolts to 8 N·m (71 lb in).
- Install the spark plugs.
Tighten
Tighten the spark plugs to 25 N·m (18 lb ft).
- Install the DIS coil and EGR valve adapter.
Tighten
Tighten the direct ignition system coil and the exhaust gas recirculation valve adapter retaining bolts to 25 N·m (18 lb ft).
- Install the intake manifold studs.
- Install the intake manifold gasket.
- Install the intake manifold.
- Install the intake manifold retaining bolt and nuts in the sequence shown.
Tighten
Tighten the intake manifold retaining bolt and nuts to 22 N·m (16 lb ft).
- Install the intake manifold support bracket.
Tighten
Tighten the intake manifold support bracket bolts to 25 N·m (18 lb ft).
- Install the fuel rail assembly. Refer to
Fuel Injection Fuel Rail Assembly Replacement.
- Install the thermostat housing assembly.
Tighten
Tighten the thermostat housing assembly mounting bolts to 15 N·m (11 lb ft).
- Install the coolant bypass housing and mounting bolts.
Tighten
Tighten the coolant bypass housing bolts to 15 N·m (11 lb ft).
- Install the exhaust manifold studs.
- Install the exhaust manifold gasket.
- Install the exhaust manifold.
- Install the exhaust manifold retaining nuts in the sequence shown.
Tighten
Tighten the exhaust manifold retaining nuts to 22 N·m (16 lb ft).
- Install the exhaust manifold heat shield.
Tighten
Tighten the exhaust manifold heat shield bolts to 8 N·m (71 lb in).
- Install the cylinder head with the intake manifold and the exhaust manifold attached. Refer to
Cylinder Head Replacement.