Cylinder Head LH: Installation

WARNING: This page is about a different car, the 2018 Ford F-350 Super Duty and 2018 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.

If necessary, install the exhaust manifold studs and gaskets.
Torque: 18 lb.ft (25 Nm)

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If necessary, install the exhaust manifold and the nuts and tighten in sequence shown.
Torque:

Stage 1: Tighten to: 18 lb.ft (24 Nm)

Stage 2: Tighten to: 23 lb.ft (31 Nm)

Fig 1: Exhaust Manifold Tightening Sequence LH
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If necessary, install the exhaust manifold heat shield and the bolts.
Torque: 106 lb.in (12 Nm)

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Install the new cylinder head gasket.

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NOTE: Make sure all coolant residue and foreign material are cleaned from the block surface and cylinder bore.

NOTE: The cylinder head bolts are torque-to-yield and must not be reused. New cylinder head bolts must be installed.

Install the cylinder head and the new bolts and tighten in 10 stages.

Torque:

Stage 1: Tighten bolts 1 through 10 to: 18 lb.ft (25 Nm)

Stage 2: Tighten bolts 1 through 10 to: 55 lb.ft (75 Nm)

Stage 3: Loosen: 180 °

Stage 4: Tighten bolts 1 through 10 to: 18 lb.ft (25 Nm)

Stage 5: Tighten bolts 1 through 10 to: 37 lb.ft (50 Nm)

Stage 6: Tighten bolt 11 to: 89 lb.in (10 Nm)

Stage 7: Tighten bolts 1 through 10 an additional: 90 °

Stage 8: Tighten bolts 1 through 10 an additional: 90 °

Stage 9: Tighten bolt 11 to: 177 lb.in (20 Nm)

Stage 10: Tighten bolt 11 an additional: 45 °

Fig 2: Cylinder Head Tightening Sequence LH
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Connect the oil pressure switch wiring harness electrical connector and retainer.

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Install the thermostat.

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Install and lubricate the thermostat housing O-ring seal.

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Install the thermostat housing and upper radiator hose assembly and the bolts.
Torque: 89 lb.in (10 Nm)

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Connect the LH CMP sensor and the CHT sensor wiring harness electrical connectors.

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Position the engine ground strap and install the nut.
Torque: 89 lb.in (10 Nm)

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Install the new LH catalytic converter pipe-to-manifold nuts.
Torque: 30 lb.ft (40 Nm)

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Install the new RH catalytic converter pipe-to-manifold nuts.
Torque: 30 lb.ft (40 Nm)

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Install the following items:
1. Install the RH and LH timing chains. Refer to: Timing Chain .
2. Install the intake manifold. Refer to: Intake Manifold .
- Remove the oil pan drain plug and drain the engine oil. Use the General Equipment: Oil Drain Equipment
- Install the oil pan drain plug.
  Torque: 17 lb.ft (23 Nm)
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Remove and discard the engine oil filter.

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NOTE: Lubricate the oil filter gasket with clean engine oil.

Install a new engine oil filter.

Material: Motorcraft ® SAE 5W-30 Synthetic Blend Motor Oil / XO-5W30-QSP (WSS-M2C946-A)

Torque:

Stage 1: 44 lb.in (5 Nm)

Stage 2: 180 °

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Fill the engine with clean engine oil. Refer to: Specifications .
Material: Motorcraft ® SAE 5W-30 Synthetic Blend Motor Oil / XO-5W30-QSP (WSS-M2C946-A)

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Connect the battery ground cable. Refer to: Battery Disconnect and Connect .
Install the cooling module. Refer to: Cooling Module .