G80XW/XF, G115XW/XF, G150XW/XF, G200XW/XF - 50HZ
OPERATION & MAINTENANCE MANUAL
90
G100XW/XF, G135 XW/XF, G170XW/XF, G225XW/XF - 60Hz
CYLINDER BLOCK/HEAD
VALVE CLEARANCE
Adjust the valve clearance.
•
When disassembling the engine or cylinder head.
•
When there is excessive noise in the valve
connection.
•
When the engine runs abnormally even if the fuel
injection system is normal.
HOW TO ADJUST THE VALVE CLEARANCE
1. Loosen the lock nuts of rocker arm adjusting screws.
2. Push the feeler gauge of specified value between a
rocker arm and a valve stem (to measure the
clearance of the valve and rocker arm contacting
part).
3. Adjust the clearance with adjusting screw
respectively and then tighten with the lock nut.
4. Adjust valve clearance with a feeler gauge and tighten
the fixing nuts to the specified torque.
Torque
5.0 kgf·m
EA8M3007
Valve clearance adjust