Cylinder Head: Assembly

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

NOTE: If installing the original valves, make sure the valves are installed in the same position from which they were removed. Coat the valve stems with clean engine oil.

Install the intake and exhaust valves.

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NOTE: Lubricate the valve seals with clean engine oil.

Using the special tool, install the valve seals. Use Special Service Tool: 303-470 (T94P-6510-CH) Installer, Valve Stem Oil Seal.

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NOTE: Use a small screwdriver and multi-purpose grease to install the valve collets. Check the seating of the valve collet.

Using the special tools, install the valve spring, valve spring retainer and the valve collet. 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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NOTE: If a spark plug is dropped, internal damage may result and the spark plug must be discarded. The use of a damaged spark plug may cause cylinder misfire resulting in engine damage.

Install the spark plugs.

Torque: 106 lb.in (12 Nm)

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NOTE: Do not use compressed air or the Fuel Injector Brush to clean the tip of the fuel injectors. Failure to follow this instruction may result in damage to the fuel injectors.

NOTE: Make sure to thoroughly clean any residual fuel or foreign material from the cylinder head, block and the general surrounding area of the fuel rails and injectors.

Using the special tool, clean the fuel injector bores. Use Special Service Tool: 310-205 Fuel Injector Brush.

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NOTE: Do not lubricate the new lower Teflon® fuel injector seals.
1. Install the special tool. Use Special Service Tool: 310-207 Installer, Fuel Injector Seal Assembly.
2. NOTE: Once the Teflon® seal is installed on the Teflon® Seal Guide, it should immediately be installed onto the fuel injector to avoid excessive expansion of the Teflon® seal.
  
  Make sure that new lower fuel injector Teflon® seals are installed. Use Special Service Tool: 310-207 Installer, Fuel Injector Seal Assembly.
3. Using the Pusher Tool, slide the Teflon® seals off of the Teflon® Seal Guide and into the groove on the fuel injectors.
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NOTE: Install the fuel injectors into the cylinder head within 15 minutes of sizing the seals due to Teflon® seal expansion.

NOTE: Make sure the Teflon® seal is fully seated in the groove on the fuel injector before sizing the Teflon® seal.
1. Some massaging of the Teflon® seal with your fingers before the Teflon® seal sizer tool is installed will aid in installing the Teflon® seal sizer tool.
2. Position the Teflon® seal sizer tool with the larger opening towards the Teflon® seal. Push while turning the Teflon® seal sizer tool 180 degrees. Use Special Service Tool: 303-1567 Sizer, Teflon Seal.
3. Once the Teflon® seal sizer tool is installed, check and make sure the Teflon® seal is in the sizing portion of the Teflon® seal sizer tool. After one minute, turn the Teflon® seal sizer tool back 180 degrees and remove.
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NOTE: Use fuel injector O-ring seals that are made of special fuel-resistant material. The use of ordinary O-ring seals may cause the fuel system to leak. Do not reuse the O-ring seals.

NOTE: Do not lubricate the new lower Teflon® fuel injector seals.
1. Install the fuel injector seal.
2. Lubricate with clean engine oil and install the fuel injector O-ring seal.
3. Install the fuel injector clip.
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NOTE: The FRP sensor must be replaced if it is removed from the fuel rail.

NOTE: The anti-rotation finger of the fuel injector clip must slip into the groove of the fuel rail cup.

Install the fuel injectors in the fuel rail.

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NOTE: Do not lubricate the new lower Teflon® fuel injector seals.

NOTE: Make sure that new fuel rail bolts are installed.

Install the fuel rail by pushing down on the fuel rail above the injectors and install the bolts.

Torque: Stage 1: 71 lb.in (8 Nm) | Stage 2: 26°

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Install a new CHT sensor.
Torque: 97 lb.in (11 Nm)

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Install the ground wire and the bolt.
Torque: 18 lb.ft (25 Nm)

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Install a new coolant outlet gasket.

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Install the coolant outlet and the bolts.
Torque: 89 lb.in (10 Nm)

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