TM 10-4320-307-24
4-16
CONNECTING ROD AND PISTON ASSEMBLY REPLACE/REPAIR .
This task covers:
a.
Removal
b.
Cleaning/Inspection/Repair
c.
Assembly
d.
Installation
INITIAL SETUP
Tools
Materials/Parts (Continued)
Tool kit, general mechanic's (Item 1, Appendix B)
Grease (Item 16, Appendix C)
Torque wrench (Item 2, Appendix B)
Liquid soap (Item 20, Appendix C)
Internal snap ring pliers (Item 2, Appendix B)
Lint-free cloth (Item 19, Appendix C)
T-handle piston pusher
Equipment
Piston ring expander (Item 45, Appendix B)
Condition
Connecting rod guide pins (2)
Reference
Condition Description
Ring groove wear gauge
Piston pin snap rings
Paragraph
Engine assembly removed
Snap ring pliers (Item 2, Appendix B)
3-20
Piston ping comprer
3-38
from engine
Piston pin bushing Inserter
Paragraph
Oil pan assembly removed
Piston ring compressor
Outside micrometer (Item 36, Appendix B)
Paragraph
Cylinder head assembly
Inside micrometer (Item 4, Appendix B)
3-36
removed from engine
Rubber hammer meter
Paragraph
Piston cooling nozzles
4-18
removed
Materials/Parts
General Safety Instructions
Dry cleaning solvent (Item 30, Appendix C)
Dry cleaning solvent (Item 30, Appendix C)
Well ventilated area for cleaning procedures
Crocus abrasive cloth (Item 1, Appendix C)
Lubricating oil (Item 22, Appendix C)
REMOVAL:
1.
Use scraper with aluminum blade to remove ring of
carbon deposits at top of cylinder liner.
2.
Remove loose carbon from cylinders, using lint free
cloth.
3.
Loosen all connecting rod bolts (1) but do not remove.
4.
Use a rubber hammer to hit connecting rod bolts to
loosen cap (2) from dowel in connecting rod (3).
5.
Check to see that cap (2) and connecting rod (3) have
matching numbers an are in correct cylinder location.
If no numbers are present they must be marked before
removing. Make note of the side of engine on which
numbers are stamped.
6.
Remove bolts (1), caps (2), and lower connecting rod
bearing shells (4).
7.
Mark cylinder number and letter L in flat surface of
bearing tang.
4-113
