Cylinder Head: Disassembly

WARNING: This page is about a different variant/trim than selected.

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

NOTE: If the components are to be reinstalled, mark the location of the components removed, they must be installed in the same location.

Remove the bolts and coolant outlet.

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Remove and discard the coolant outlet gasket.

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Remove the bolt and the ground wire.

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Remove and discard the CHT sensor.

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NOTE: Pull out the fuel rails in the direction of the fuel injector axis or damage may occur to the fuel injectors.

NOTE: Use compressed air and remove any dirt or foreign material from the cylinder head, block and general surrounding area of the fuel rail and injectors.

NOTE: When removing the fuel rails, the fuel injectors may remain in the fuel rails but normally remain in the cylinder head and require the use of a Fuel Injector Remover tool to extract.
- Remove the bolts and the fuel rail.
- Discard the bolts.
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Remove any of the fuel injectors that remained in the fuel rail.

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Remove any of the fuel injectors that remained in the cylinder head. Use Special Service Tool: 310-206 Remover, Fuel Injector, 307-005 (T59L-100-B) Slide Hammer.

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Remove the fuel injector clip.

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NOTE: Do not attempt to cut the lower Teflon® seal without first pulling it away from the fuel injector or damage to the injector may occur.

NOTE: Be very careful when removing the lower Teflon® seals, not to scratch, nick or gouge the fuel injectors.
1. Pull the lower Teflon® seal away from the injector. Use the General Equipment: Long Nose Pliers
2. Carefully cut and discard the lower fuel injector Teflon® seals. Use the General Equipment: Knife
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Remove and discard the fuel injector seal and O-ring seal.

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NOTE: Use compressed air to remove any foreign material in the spark plug well before removing the spark plugs.

Remove the spark plugs.

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NOTE: Use a small screwdriver and multi-purpose grease to remove the valve collets.

Using the special tools, remove the valve collet, valve spring retainer and the valve spring. Use Special Service Tool: 303-300 (T87C-6565-A) Set, Valve Spring Compressor, 303-350 (T89P-6565-A) Compressor, Valve Spring, 303-472 (T94P-6565-AH) Adapter, Valve Spring Compressor, 303-1249 Valve Spring Compressor.

Material

: Motorcraft® Multi-Purpose Grease Spray / XL-5-A (ESB-M1C93-B)

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Inspect and install new parts, as necessary.

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Using the special tool, remove the valve seals. Use Special Service Tool: 303-468 (T94P-6510-AH) Remover, Valve Stem Oil Seal, 307-005 (T59L-100-B) Slide Hammer.

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NOTE: Note the location of the valves if they are to be reused.

Remove the intake and exhaust valves.

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Inspect the intake and exhaust valves seats.

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NOTE: Install new parts, as necessary.
1. Inspect the end of the stem for grooves or scoring.
2. Inspect the valve face and the edge for pits, grooves or scores.
3. Inspect the valve head for signs of burning, erosion, warpage and cracking.
4. Inspect the valve margin for wear.

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