Remark intake and exhaust
valves (8 and 9) according to their
location in the cylinder head (2).
Drycleaning Solvent (P-D-680) is TOXIC and flammable. Wear protective goggles and
gloves; use only in a well-ventilated area; avoid contact with skin, eyes, and clothes; and
do not breathe vapors. Keep away from heat or flame. Never smoke when using solvent;
the flashpoint for type I drycleaning solvent is 100°F (38°C), type II is 138°F (59°C), and
type III is 200°F (93.3°C). Failure to do so may result in injury or death to personnel.
· If personnel become dizzy while using cleaning solvent, immediately get fresh air and
medical help. If solvent contacts skin or clothes, flush with cold water. If solvent
contacts eyes, immediately flush eyes with water and get immediate medical
· Compressed air used for cleaning purposes will not exceed 30 psi (207 kPa). Use only
with effective chip guarding and personal protective equipment (goggles/shield,
Clean valve springs (10) with dry
cleaning solvent and dry thoroughly
with compressed air.
Inspect cylinder head (2).
Check for uneven surfaces and
warpage of cylinder head (2).
Place a straightedge along length of
cylinder head (2) mating surface
and check for distortion.