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Home >> Subaru >> 2006 >> Baja F4-2.5L DOHC Turbo >> Repair and Diagnosis >> Specifications >> Mechanical Specifications >> Engine >> Cylinder Head Assembly >> System Specifications
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System Specifications

Cylinder head





Use new cylinder head gaskets.
Tighten all bolts 29 Nm (3.0 kgf-m, 22 ft. lbs.) in alphabetical sequence.
Tighten all bolts 69 Nm (7.0 kgf-m, 51 ft. lbs.) in alphabetical sequence again.
Back off all bolts by 180° first; back them off by 180° again in reverse order of installation.
Tighten all bolts 49 Nm (5.0 kgf-m, 36 ft. lbs.) in alphabetical sequence.
Tighten all bolts 80 to 90° in alphabetical sequence.
Tighten all bolts by 40 to 45° in alphabetical sequence again.

CAUTION: Do not tighten the bolts by more than 45°.


Further tighten all bolts (A) and (B) by 40 to 45°.

CAUTION: Ensure that the total "re-tightening angle" in the previous two steps do not exceed 90°.

Cylinder head
Surface warpage limit 0.035 mm (0.0014 inch)
Surface grinding limit 0.3 mm (0.012 inch)
Standard height 127.5 mm (5.02 inch)

Camshaft Pulley







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