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 MANUALSSUBARU2008FORESTER F4-2.5L DOHC TURBOREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER HEAD ASSEMBLYSYSTEM SPECIFICATIONS
2008 Subaru Forester F4-2.5L DOHC Turbo
System Specifications
2008 Subaru Forester F4-2.5L DOHC TurboSECTION System Specifications
Cylinder head
Surface warpage limit 0.035 mm (0.0014 in)
Grinding limit 0.3 mm (0.012 in)
Standard height 127.5 mm (5.02 in)
Cylinder head bolts
Tighten all bolts to 29 N-m (3.0 kgf-m, 21.4 ft-lb) in alphabetical sequence.
Tighten all bolts to 69 N-m (7.0 kgf-m, 50.9 ft-lb) in alphabetical sequence.
Loosen all the bolts by 180° in the reverse order of installing, and loosen them further by 180°.
Tighten all bolts to 49 N-m (5.0 kgf-m, 36.1 ft-lb) in alphabetical sequence.
Tighten all bolts by 80 to 90° in alphabetical sequence.
Tighten all bolts by 40 to 45° in alphabetical sequence.
Further tighten the bolts (a) and (b) by 40 - 45°
Camshaft caps
Camshaft sprockets
Surface warpage limit 0.035 mm (0.0014 in)
Grinding limit 0.3 mm (0.012 in)
Standard height 127.5 mm (5.02 in)
Cylinder head bolts
Tighten all bolts to 29 N-m (3.0 kgf-m, 21.4 ft-lb) in alphabetical sequence.
Tighten all bolts to 69 N-m (7.0 kgf-m, 50.9 ft-lb) in alphabetical sequence.
Loosen all the bolts by 180° in the reverse order of installing, and loosen them further by 180°.
Tighten all bolts to 49 N-m (5.0 kgf-m, 36.1 ft-lb) in alphabetical sequence.
Tighten all bolts by 80 to 90° in alphabetical sequence.
Tighten all bolts by 40 to 45° in alphabetical sequence.
Further tighten the bolts (a) and (b) by 40 - 45°
Camshaft caps
Camshaft sprockets
RENDER: 1.0x
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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.