VALVES AND VALVE SPRINGS MAINTENANCE (Contd)
Valves and valve springs on both engines are replaced the same
way. This procedure covers the replacement of valves and valve
springs on one engine.
Mark valves (1) to identify their position.
Using valve spring compressor, compress valve spring (2) and remove valve spring collets (3).
Release valve spring (2) and remove retainer (4) and valve spring (2).
After removing collets, retainers, springs, and valves, place in a
labeled rack for identification.
Remove the remaining valve spring collets (3), retainers (4), valve springs (2), and valves (1) from
cylinder block (5).
Remove valve stem seals (6) from cylinder block (5).
CLEANING AND INSPECTION
For general cleaning and inspection instructions, refer to WP 0013 00.
Skysol 100 solvent is combustible; DO NOT use or store near heat,
sparks, flame, or other ignition sources. Use mechanical ventilation
whenever product is used in a confined space, heated above
ambient temperatures, or agitated. Keep container sealed when not
Contact with Skysol 100 may cause skin irritation. Use chemical-
resistant gloves. In case of skin contact, remove any contaminated
clothing and wash skin thoroughly with soap and water. Wash
contaminated clothing before reuse. Eye contact may cause
irritation, tearing, or blurring of vision. Use face shield or goggles
when eye contact may occur. In case of eye contact, flush eyes with
large amounts of water for at least 15 minutes or until irritation
subsides. Inhalation may cause irritation to upper respiratory
passages. DO NOT have food or drink in the vicinity. Failure to
comply may result in injury to personnel.
Clean cylinder block (5) and components with Skysol 100 and dry with cloth.
Note the valve number prior to cleaning the valves.
Clean valve heads (8) with soft wire wheel.
Polish valve stems (7) with crocus cloth.
Inspect for abnormal wear on valve heads (8) and valve stems (7). Replace valve (1) if abnormally or
Check valve (1) for bending. Replace valve (1) if bent.
Measure valve stem (7) diameter. Refer to Table 1. Valve Stem Diameter Limits for specifications.
Replace valve (1) if valve stem (7) is not within specifications.
Table 1. Valve Stem Diameter Limits.