TM 9-2815-250-24&P
3-9.
PISTON AND COMBUSTION CHAMBER LINER REPAIR.
This Task Covers:
a.
Removal
b.
Disassembly
c.
Cleaning
d.
Assembly
e.
Installation
Initial Setup:
Tools/Test Equipment:
Drycleaning solvent (Item 4, Appendix D)
Cylinder ridge reamer (Item 8, Appendix G)
Lubricating oil (Item 6, Appendix D)
General mechanic's tool kit, automotive
Rag (Item 7, Appendix D)
(Item 15, Appendix G)
Cap-plug (2) (Item 10, Appendix F)
Piston ring compressor (Item 21, Appendix G)
Cap-plug (4) (Item 11, Appendix F)
Piston ring expander (Item 22, Appendix G)
Piston ring set (2) (Item 2, Appendix F)
Screwdriver attachment, 6 mm (Item 24, Appendix G)
Retaining ring (4) (Item 47, Appendix F)
Snapring pliers (Item 26, Appendix G)
Shim (2) (Item 9, Appendix F)
Socket wrench set, 3/8-inch drive (Item 27,
Sleeve bearing (2) (Item 7, Appendix F)
Appendix G).
Torque wrench, 3/8-inch drive (Item 30,
Personnel Required:
Appendix G)
Equipment Conditions:
Materials/Parts:
Cylinder heads removed (para 3-5).
Carbon-removing compound (Item 3,
Engine placed on side.
Appendix D)
Oil pan removed (para 3-13).
a.
REMOVAL
NOTE
There are two connecting rod caps on the engine. Repeat steps 1 and 2 to remove
each of them.
1.
Turn crankshaft (4) so crankshaft journal for connecting rod cap (5) to be removed is in its lowest position.
2.
Remove two connecting rod screws (6) and connecting rod cap (5) from connecting rod (1).
3.
Remove two combustion chamber liners (2), with two pistons inside, from crankcase (3).
3-32
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