LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Subaru >> 2003 >> Impreza F4-2.5L SOHC >> Repair and Diagnosis >> Specifications >> Mechanical Specifications >> Engine >> Cylinder Head Assembly >> System Specifications
April 5, 2026: LEMON Manuals is launched! Read the announcement.

System Specifications

SPECIFICATIONS

















NOTE: US: Undersize OS: Oversize





CYLINDER HEAD AND CAMSHAFT





VALVE ROCKER ASSEMBLY





CYLINDER HEAD AND VALVE ASSEMBLY

Camshaft sprocket Bolt 78 Nm (8.0 kgf-m, 57.9 ft. lbs.)
Camshaft Cap Bolts
1) Apply liquid gasket on the around of camshaft cap.





NOTE: Apply a 3 mm (0.12 inch) diameter (A) bead of liquid gasket along edge (B) of the camshaft cap (C) mating surface.





2) Temporarily tighten bolts (g) through (j) in alphabetical sequence.





3) Install the valve rocker assembly.





4) Tighten bolts (a) through (h) in alphabetical sequence 25 Nm (2.5 kgf-m, 18.1 ft. lbs.)





5) Tighten the TORX bolts (i) through (n) in alphabetical sequence 18 Nm (1.8 kgf-m, 13.0 ft. lbs.)





6) Tighten bolts (o) through (v) in alphabetical sequence 10 Nm (1.0 kgf-m, 7.2 ft. lbs.)





7) Tighten bolts (w) through (x) in alphabetical sequence 10 Nm (1.0 kgf-m, 7.2 ft. lbs.)