Death of serious injury could occur if compressed air Is directed against
skin. Do not use compressed air for cleaning or drying unless the pres-
sure Is/has been reduced to 30 PSI of less. When working with com-
pressed air always use eye protection and any other protective equip
Do not confuse the Intake l nd exhaust valve stems.
The Intake/exhaust valve guides are provided with a valve
stem seal. Valve stem seals cannot be reused and must
be replaced with new ones.
When Inserting the Intake and exhaust valve stems, apply
lube oil to the valve stems.
Clean cylinder head and valves with a clean cloth dampened with diesel fuel. Use wire brush where
necessary and dry with compressed air.
Inspect cylinder head for cracks, rust, corrosion, or excessive heat damage.
Inspect valve heads and valve stems for cracks, pitting, scratches, warpage, or any other damage.
Figure 5-4 Typical Valve
Figure 5-5 Valve Recess
Check that each valve stem diameter is greater than 0.2126 inch (5.40 mm).
Check that each valve recess is less than 0.043 inch (1.1 mm).