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.
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HOMESERVICE MANUALSMERCURY2009MILAN AWD L4-2.3LREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER HEAD ASSEMBLYSYSTEM SPECIFICATIONS
2009 Mercury Milan AWD L4-2.3L
System Specifications
2009 Mercury Milan AWD L4-2.3LSECTION System Specifications
Cylinder Head
Install the cylinder head and 10 new bolts. Tighten the bolts in the sequence shown in 5 stages:
Stage 1: Tighten to 7 Nm (62 lb-in).
Stage 2: Tighten to 15 Nm (133 lb-in).
Stage 3: Tighten to 45 Nm (33 lb-ft).
Stage 4: Turn 90 degrees.
Stage 5: Turn an additional 90 degrees.
Bolt Re-usability
NOTE: The cylinder head bolts are a torque-to-yield design and must not be reused. New cylinder head bolts must be installed.
Surface Variation - Head-to-block, Head-to-manifolds And Surface Variation - Warpage
a No. 3 Journal - Supported by No. 1 and No. 5 journals.
Intake Manifold
Install new gaskets, the intake manifold and the 8 bolts.
Tighten the bolts to 18 Nm (159 lb-in).
Camshaft Bearing Cap
Install the camshafts and bearing caps in their original location and orientation. Tighten the bearing caps in the sequence shown in 3 stages:
Stage 1: Tighten the camshaft bearing cap bolts until finger tight.
Stage 2: Tighten to 7 Nm (62 lb-in).
Stage 3: Tighten to 16 Nm (142 lb-in).
Camshaft Sprocket Bolt/Camshaft Drive Gear Bolt
Tighten the bolt to 72 Nm (53 lb-ft)
Install the cylinder head and 10 new bolts. Tighten the bolts in the sequence shown in 5 stages:
Stage 1: Tighten to 7 Nm (62 lb-in).
Stage 2: Tighten to 15 Nm (133 lb-in).
Stage 3: Tighten to 45 Nm (33 lb-ft).
Stage 4: Turn 90 degrees.
Stage 5: Turn an additional 90 degrees.
Bolt Re-usability
NOTE: The cylinder head bolts are a torque-to-yield design and must not be reused. New cylinder head bolts must be installed.
Surface Variation - Head-to-block, Head-to-manifolds And Surface Variation - Warpage
a No. 3 Journal - Supported by No. 1 and No. 5 journals.
Intake Manifold
Install new gaskets, the intake manifold and the 8 bolts.
Tighten the bolts to 18 Nm (159 lb-in).
Camshaft Bearing Cap
Install the camshafts and bearing caps in their original location and orientation. Tighten the bearing caps in the sequence shown in 3 stages:
Stage 1: Tighten the camshaft bearing cap bolts until finger tight.
Stage 2: Tighten to 7 Nm (62 lb-in).
Stage 3: Tighten to 16 Nm (142 lb-in).
Camshaft Sprocket Bolt/Camshaft Drive Gear Bolt
Tighten the bolt to 72 Nm (53 lb-ft)
RENDER: 1.0x
NO RELATED
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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.