TM 5-4210-233-14&P-2
6-33. PISTON REPAIR
This task covers:
a. Disassembly
c. Assembly
b. Cleaning/Inspection
d Follow-on Maintenance
TOOLS REQUIRED
MATERIALS/PARTS REQUIRED
Tool Kit, General Mechanics, Automotive
Solvent, dry cleaning (Item 3, Appendix E)
(Appendix B, Section 1II, Item 1)
Oil, lubricating (Item 10, Appendix E)
Compound, international No. 2)
Shop Equipment, Automotive
(Item 37, Appendix E)
Maintenance and Repair
Tags, identification (Item 32, Appendix E)
(Appendix B, Section III, Item 4)
Brush, paint, oval 1-1/4 in. (32 mm) size 12
(Item 44, Appendix E)
Tool, piston pin retainer (Appendix B, Section 111, Item 47)
Gauge set, piston (Appendix B, Section 111, Item 15)
EQUIPMENT CONDITION
Gauge, crown, piston (Appendix B, Section 1II, Item 48)
Piston, Connecting Rod and Liner Removed
Gauge, piston groove (Appendix B, Section 111, Item 49)
(see para 6-32.)
Leak detector set (Appendix B, Section 111, Item 50)
a. Disassembly.
(1) Place connecting rod (1) in vise
with soft jaws.
(2) Remove three upper piston rings
(2) using piston ring remover and
installer. Remove four lower
piston rings (3) by hand.
(3) Remove oil ring expander (4)
from each lower piston ring
groove.
(4) Punch hole in two piston pin
retainers (5). Remove both
retainers.
(5) Loosen two screws (6).
(6) Remove connecting rod (1) and
piston (7) from vise.
(7) Remove two screws (6) and
two spacers (8).
NOTE
Matchmark connecting rod before removal.
(8) Remove connecting rod (1) from piston (7
6-183