Cylinder Block, Liners, Pistons, and Rods
02
030
21
RG,RG34710,114 –19–01NOV00–2/2
RG8367 –UN–09DEC97
Removing Piston Rings
A—JDG967 Piston Ring Expander
B—Piston Ring
3. Remove piston rings (B) using the JDG967 Piston Ring
Expander (A). Discard rings.
CAUTION: Always follow manufacturer’s
instructions, and safety steps exactly.
4. Clean piston ring grooves using a piston ring groove
cleaning tool.
IMPORTANT: When washing pistons, always use a
stiff bristle brush—NOT A WIRE
BRUSH—to loosen carbon residue.
DO NOT bead blast ring groove areas.
5. Clean pistons by any of the following methods:
• Immersion-Solvent “D-Part”.
• Hydra-Jet Rinse Gun.
• Hot water with liquid detergent soap.
If cleaning with hot water and liquid detergent, soak
pistons in a 50 percent solution of liquid household
detergent and hot water for 30 to 60 minutes. Use a
stiff bristle brush—NOT A WIRE BRUSH—to loosen
carbon residue. Dry with compressed air.
CTM100 (06APR04)
02-030-21
P
OWER
T
ECH
10.5 L & 12.5 L Diesel Engines
040604
PN=161
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