Technical data

4. Valve
Check the valve face and stem for excessive wear, damage and
deformation. Correct or replace if defective.
If valve head thickness has decreased over the service limit,
replace the valve.
Check the tip of the valve stem for wear and pitting. Correct if
defective. Replace if the tip is worn over the service limit.
5. Valve Spring
Check for cracks and damage.
Measure the free length and load of the spring.
Replace if the spring is deteriorated.
Check the squareness of the spring. Replace if it
tilts too much.
6. Rocker Arm and Rocker Shaft
Check the rocker arm face for wear and damage.
Replace the rocker arm if excessively worn
or damaged. Also check the adjusting screw.
If its push rod contact surface is worn or
damaged, replace.
Measure the rocker arm I.D. and shaft O.D. In the
event of excessive clearance, replace the
rocker arm.
REASSEMBLY
Reassembly can be done by reversing the order or disassembly. reassembling keep in mind the
following items.
1. Partial Assembly of Cylinder Head Assembly
Press in the valve guide to the specified height. (For installation, see 2. Valve Guide Inspection.)
Install the valve stem seal properly#in the valve guide.