Subaru Workshop Service and Repair Manuals

Valve: Specifications

Head Edge Thickness:

Intake:

Standard ........................................................................................................................................................................................  1.2 mm (0.047 mm)
Limit ............................................................................................................................................................................................  0.8 mm (0.031 inch)

Exhaust:

Standard .......................................................................................................................................................................................  1.5 mm (0.059 inch)
Limit ............................................................................................................................................................................................  0.8 mm (0.031 inch)

Stem Diameter:

Intake .................................................................................................................................................................  5.950 - 5.965 mm (0.2343 - 0.2348 inch)
Exhaust ..............................................................................................................................................................  5.950 - 5.965 mm (0.2343 - 0.2348 inch)

Stem Oil Clearance:

Standard:

Intake ...........................................................................................................................................................  0.035 - 0.062 mm (0.0014 - 0.0024 inch)
Exhaust ........................................................................................................................................................  0.040 - 0.067 mm (0.0016 - 0.0026 inch)

Limit ..............................................................................................................................................................................................  0.15 mm (0.0059 inch)

Valve Overall Length:

Intake .............................................................................................................................................................................................  105.9 mm (4.169 inch)
Exhaust ..........................................................................................................................................................................................  106.2 mm (4.181 inch)