INTAKE/EXHAUST VALVE LASH ADJUSTMENT
THIS WORK PACKAGE COVERS
MOS 62B, Construction Equipment Repairer (2)
Tools and Special Tools
WP 0002 00
Shop equipment, automotive maintenance and
repair: field maintenance, basic, less power (Item
TM 5-3805-290-23P, Figure 6
Cleaning compound, solvent, type III (Item 9, WP
Estimated Time to Complete Task
Cylinder and Valve Location
(A) Inlet valve
If valve lash requires adjustment several times in a short period of time, excessive wear exists in different part of engine.
Find problem and make necessary repairs to prevent more damage to engine.
Not enough valve lash can cause rapid wear of camshaft and valve lifters and can indicate that seats for valves are worn.
Valves become worn from these causes:
Fuel injection nozzles operate incorrectly.
Excessive dirt and oil on filters for inlet air.
Fuel injection pump settings incorrect.
Engine exceeds load capacity.