Cylinder Head: Disassembly

WARNING: This page is about a different car, the 2021 Ford F-150. 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: Aluminum surfaces are soft and can be scratched easily. Never place the cylinder head gasket surface, unprotected, on a bench surface.

NOTE: The glow plugs protrude past the lower face of the cylinder head, any impact on the tip of the glow plug may result in glow plug damage.

LH cylinder head

Remove the bolt and the CMP sensor.

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Remove the bolts and the front lifting eye.

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Remove the EOP sensor.

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Remove the bolts and the rear lifting eye.

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- Disconnect the CHT electrical connector.
- Disconnect and remove the LH glow plug harness.
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- Remove and discard the CHT sensor.
- Remove the LH glow plugs.
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Remove the bolts and the EGR cooler bracket.

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Remove the bolts and the LH exhaust manifold heat shield. Discard the bolts.

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Remove the nuts and the LH exhaust manifold. Discard the nuts.

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- Remove and discard the LH exhaust manifold gasket.
- Inspect the exhaust manifold studs. Replace as necessary.
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Clean and inspect the exhaust manifold. Refer to: Exhaust Manifold Cleaning and Inspection .
RH cylinder head
Disconnect and remove the RH glow plug harness.

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Remove the RH glow plugs.

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Remove the bolts and the RH exhaust manifold heat shield. Discard the bolts.

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Remove the nuts and the RH exhaust manifold. Discard the nuts.

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- Remove and discard the RH exhaust manifold gasket.
- Inspect the exhaust manifold studs. Replace as necessary.
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Clean and inspect the exhaust manifold. Refer to: Exhaust Manifold Cleaning and Inspection .
Remove the vacuum pump stud.

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All cylinder heads
NOTE: LH shown, RH similar.

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.

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., 303-1249 Valve Spring Compressor., 303-1516 Compressor, Valve Spring.

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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NOTE: Use commercially available valve stem seal pliers.

Remove and discard the valve stem seal.

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Remove the valve from the cylinder head.

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Repeat the previous 3 steps for each valve.
Inspect the intake and exhaust valve guides and valve seats.

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

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