Acura (Honda) Workshop Service and Repair Manuals

Valve Clearance: Specifications

Valve

Clearance (cold)

Intake

Standard or new ...................................................................................................................................................  0.21-0.25 mm (0.008-0.010 in.)

Exhaust

Standard or new ...................................................................................................................................................  0.28-0.32 mm (0.011-0.013 in.)

Stem O.D.

Intake

Standard or new ...........................................................................................................................................  5.475-5.485 mm (0.2156-0.2159 in.)
Service limit .........................................................................................................................................................................  5.445 mm (0.214 in.)

Exhaust

Standard or new ...........................................................................................................................................  5.450-5.460 mm (0.2146-0.2150 in.)
Service limit .........................................................................................................................................................................  5.420 mm (0.213 in.)

Stem-to-guide clearance

Intake

Standard or new ...........................................................................................................................................  0.030-0.055 mm (0.0012-0.0022 in.)
Service limit ...........................................................................................................................................................................  0.08 mm (0.003 in.)

Exhaust

Standard or new ...........................................................................................................................................  0.055-0.080 mm (0.0022-0.0031 in.)
Service limit ...........................................................................................................................................................................  0.11 mm (0.004 in.)