Cylinder Head LH: Removal

WARNING: This page is about a different car, the 2018 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: During engine repair procedures, cleanliness is extremely important. Any foreign material, including any material created while cleaning gasket surfaces that enters the oil passages, coolant passages or the oil pan, can cause engine failure.

NOTE: If the cylinder head is replaced, a new secondary timing chain tensioner will need to be installed.

Remove the LH camshafts. Refer to: Camshafts .
Disconnect the electrical connectors and the wire harness retainers.

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Remove the bolts and the CMP sensors.

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NOTE: Make sure that all openings are sealed.

Remove the nuts and the A/C compressor inlet line. Remove and discard the O-ring seal.

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Remove the bolts and the heat shield.

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Remove the nuts from the catalytic converter support bracket.

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- Remove the nuts and LH catalytic converter.
- Discard the nuts.
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- Remove and discard the exhaust manifold gasket.
- Remove and discard the studs.
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Clean and inspect the catalytic converter flange. Refer to: Exhaust Manifold Cleaning and Inspection .
Remove the LH block coolant drain plug and allow coolant to drain from the cylinder block.

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Remove the RH block coolant drain plug or block heater and allow coolant to drain from the cylinder block.

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Remove the thermostat housing bolts.

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NOTE: If the engine is repaired or replaced because of upper engine failure, typically including valve or piston damage, check the intake manifold for metal debris. If metal debris is found, install a new intake manifold. Failure to follow these instructions can result in engine damage.

NOTE: Make sure that the fuel rail and the fuel injectors do not come out of the lower intake manifold.

Remove the bolts and the lower intake manifold.

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Remove and discard the lower intake manifold gaskets.

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Remove and discard the thermostat housing gasket.

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NOTE: Do not use power tools to remove the bolt or damage to the upper LH primary timing chain guide may occur.

Remove the bolt and the upper LH timing chain guide.

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NOTE: If the components are to be reinstalled, they must be installed in the same positions. Mark the components for installation into their original locations.

Remove the valve tappets.

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Inspect and install new components as necessary.

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Remove and discard the M6 bolt.

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NOTE: Place clean shop towels over exposed engine cavities. Carefully remove the towels so foreign material is not dropped into the engine. Any foreign material (including any material created while cleaning gasket surfaces) that enters the oil passages or the oil pan, may cause engine failure.

NOTE: Aluminum surfaces are soft and can be scratched easily. Never place the cylinder head gasket surface, unprotected, on a bench surface

NOTE: The cylinder head bolts must be discarded and new bolts must be installed. They are tighten-to-yield designed and cannot be reused.
- Remove and discard the bolts from the cylinder head.
- Remove the cylinder head.
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Remove and discard the head gasket.

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NOTE: 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.

NOTE: Observe all warnings or cautions and follow all application directions contained on the packaging.

Make sure that the mating faces are clean and free of foreign material.

Material: Motorcraft® Silicone Gasket Remover / ZC-30-A

Material: Motorcraft® Metal Surface Prep Wipes / ZC-31-B
Support the cylinder head on a bench with the head gasket side up. Check the cylinder head distortion and the cylinder block distortion. Refer to: Cylinder Head Distortion . Refer to: Cylinder Block Distortion .