Cylinder Head: Removal
WARNING: This page is about a different car, the 2004 Mercury Mountaineer and 2004 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
- With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to JACKING & LIFTING .
- Drain the engine cooling system. For additional information, refer to ENGINE COOLING .
- Remove the roller followers. For additional information, refer to CAMSHAFT ROLLER FOLLOWER AND HYDRAULIC LASH ADJUSTER .
- Remove the accessory drive belt tensioner. For additional information, refer to ACCESSORY DRIVE BELT, TENSIONER AND PULLEY .
- Disconnect the generator electrical connections and disconnect the pushpin.
- Remove the generator mounting bracket assembly.
- Remove the heater hose from the thermostat housing.
- Disconnect the engine coolant temperature (ECT) sensor electrical connector.
- Disconnect the upper radiator hose.
- Position the coolant bypass hose clamp aside.
- Remove the bolts and the thermostat housing.
- Remove the engine wiring harness bolts and position the engine wiring harness aside.
- Remove the engine ground strap.
- Disconnect the radio ignition interference capacitor electrical connector.
- Remove the bolts.
- Remove the bolts and position the accessory bracket aside.
- Remove the bolts and the coil bracket.
- Remove the oil level indicator tube.
- Disconnect all of the spark plug wires from the spark plugs.
- Remove the engine noise shield.
- Remove the four catalytic converter-to-manifold nuts.
- Remove both of the exhaust manifolds and gaskets.
- Discard the gaskets and the retaining nuts.
- Remove the RH side hydraulic chain tensioner.
- Install the special tools.
- Using the special tool with the Camshaft Sprocket Nut Socket 303-565, remove the RH camshaft bolt.
- Remove the RH side cassette bolt.
- Remove the RH camshaft sprocket from the timing chain. Install a rubber band around the cassette and the timing chain.
- Remove the LH side hydraulic chain tensioner.
- Install the special tools. Tighten the top clamp bolts to 10 Nm (89 lb-in).
- Remove the LH side camshaft sprocket bolt.
- Remove the LH side cassette bolt.
- Remove the LH camshaft sprocket from the timing chain. Install a rubber band around the cassette and the timing chain.
- Remove the cylinder heads.
- Remove the cylinder head bolts in the sequence shown. Discard all bolts.
- Remove and discard the head gasket.
- Clean and inspect the mating surfaces.
- Inspect the cylinder head and the cylinder block for flatness. For additional information, refer to ENGINE SYSTEM-GENERAL INFORMATION .
Both sides
RH side
LH side
Both sides
CAUTION:
It is important to twist the spark plug wire boots while pulling upward to avoid possible damage to the spark plug wires.
NOTE:
LH side shown, RH side similar.
RH side
CAUTION:
Remove the camshaft sprocket from the timing chain to gain clearance to remove the cylinder head.
NOTE:
Hold the timing chain and cassette with a rubber band to aid in removal and to prevent the timing chain from falling into the cylinder block.
LH side
CAUTION:
Remove the camshaft sprocket from the timing chain to gain clearance to remove the cylinder head.
NOTE:
Hold the timing chain and cassette with a rubber band to aid in removal and to prevent the timing chain from falling into the cylinder block.
Both sides
CAUTION:
To avoid damage to the timing chain cassette an assistant will be required to help lift the cylinder head from the vehicle.
CAUTION:
On the RH side, when lifting the cylinder head be careful to avoid contacting the A/C tube.
NOTE:
New cylinder head bolts must be installed. They are a torque-to-yield design and cannot be reused.
CAUTION:
Do not use metal scrapers, wire brushes, power abrasive discs or other abrasive means to clean the sealing surfaces. These tools cause scratches and gouges that make leak paths. Use a plastic scraping tool to remove all traces of the head gasket.