PISTONS, PISTON PINS AND RINGS MAINTENANCE - CONTINUED
REMOVAL - CONTINUED
Remove second retaining ring (5), from side of piston (3).
Remove and discard piston rings (6 thru 8) and oil ring expander (9).
Solvent cleaning compound, MIL-PRF-680 Type III is an environmentally compliant and low toxic mate-
rial. However, it may be irritating to the eyes and skin. Use protective gloves and goggles. Use in well-ven-
tilated areas. Keep away from open flames and other sources of ignition.
Do not use bead blast to clean pistons. Bead blasting may damage piston.
Soak pistons (3) in clean cleaning solvent compound
to remove carbon deposits.
Wash pistons in a strong solution of laundry detergent
and hot water, to remove carbon residue. Use a stiff
Clean ring grooves in piston (3) using square end of a
broken piston ring (10). Use care to avoid scratching
ring sealing surfaces in piston grooves.