1. Insert the intake and exhaust valves in the head, and measure valve stem installed height (A). Intake Valve Stem Installed Height
   Standard (New): | 44.0−44.5 mm (1.73−1.75 in.)
   Service Limit: | 44.7 mm (1.76 in.)
   Exhaust Valve Stem Installed Height
   Standard (New): | 44.1−44.6 mm (1.74−1.76 in.)
   Service Limit: | 44.8 mm (1.76 in.)
If valve stem installed height is over the service limit, replace the valve and recheck. If it is still over the service limit, replace the cylinder head; the valve seat in the head is too deep. |