Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Cylinder Head: Assembly
All cylinder heads
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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.
Lubricate with clean engine oil and install the valve in the cylinder head.
Material: Motorcraft® SAE 5W-30 F-150 Diesel Motor Oil / XO-5W30-QFA (WSS-M2C214-B1)
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NOTE: Use commercially available valve stem seal pliers.
Lubricate with clean engine oil and install the valve seal.
Material: Motorcraft® SAE 5W-30 F-150 Diesel Motor Oil / XO-5W30-QFA (WSS-M2C214-B1)
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NOTE: Use a small screwdriver and multi-purpose grease to install the valve collets. Check the seating of the valve collets.
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., 303-1249 Valve Spring Compressor., 303-1516 Compressor, Valve Spring.
Material: Motorcraft® Multi-Purpose Grease Spray / XL-5-A (ESB-M1C93-B)
- Repeat the previous 3 steps for each valve.
RH cylinder head
- Install the vacuum pump stud.
Torque: 115 lb.in (13 Nm)
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- Install the exhaust manifold studs as needed.
Torque: 115 lb.in (13 Nm)
- Install the RH exhaust manifold gasket.
- Install the exhaust manifold studs as needed.
- Install the RH exhaust manifold and the nuts.
Torque: Tighten the nuts in the sequence shown to: : 21 lb.ft (28 Nm) Tighten the nuts in the following order 1, 2, 3, 5, 1, 2 to: : 21 lb.ft (28 Nm)
- Install the RH exhaust manifold heat shield and the bolts.
Torque: 97 lb.in (11 Nm)
- Install the RH glow plugs.
Torque: 97 lb.in (11 Nm)
- Install the RH glow plug harness.
LH cylinder head
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- Install the exhaust manifold studs as needed.
Torque: 115 lb.in (13 Nm)
- Install the LH exhaust manifold gasket.
- Install the exhaust manifold studs as needed.
- Install the LH exhaust manifold and the nuts.
Torque: Tighten the nuts in the sequence shown to: : 21 lb.ft (28 Nm) Tighten the nuts in the following order 1, 2, 3, 5, 1, 2 to: : 21 lb.ft (28 Nm)
- Install the LH exhaust manifold heat shield and the bolts.
Torque: 97 lb.in (11 Nm)
- Install the EGR cooler bracket and the bolts.
Torque: 89 lb.in (10 Nm)
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- Install the new CHT sensor.
Torque: 97 lb.in (11 Nm)
- Install the LH glow plugs.
Torque: 97 lb.in (11 Nm)
- Install the new CHT sensor.
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- Install the LH glow plug harness.
- Connect the CHT electrical connector.
- Install the rear lifting eye and the bolts.
Torque: 17 lb.ft (23 Nm)
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NOTE: If the EOP sensor is to be reused, apply thread sealant.
Install the EOP sensor.
Material: Motorcraft® Thread Sealant with PTFE / TA-24-B (WSK-M2G350-A2)
Torque: 159 lb.in (18 Nm)
- Install the front lifting eye and the bolts.
Torque: 17 lb.ft (23 Nm)
- Install the CMP sensor and the bolt.
Torque: 89 lb.in (10 Nm)
NO RELATED
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.