Valves and Cylinder Head Assembly Inspection
Valve Protrusion
1) Clean valve face and then measure protrusion of each valve using special tool and dial gauge as shown in the figure.
If average is out of specification, grind valve seat and then lap valve on seat.
Special Tool
(A) : 09910–26510 /OUT0000005
Valve protrusion
Intake and exhaust valve protrusion
“a”: –0.07 to 0.07 mm (–0.0027 to 0.0027 in.)
2. Intake valve 3. Exhaust valve