TM 10-4320-307-24
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CONNECTING ROD AND PISTON ASSEMBLY REPLACE/REPAIR (CONT).
8.
Install two connecting rod guide pins (5) into each
connecting rod (3).
9.
Use a T-handle piston pusher (6) to push connecting
rod (3) away from crankshaft, until all piston rings are
clear of top of cylinder liner.
10. Remove all piston and connecting rod assemblies.
11. Check to see that piston tops are marked for cylinder
location. If not, stamp cylinder number on piston top
toward camshaft side of engine.
DISASSEMBLY:
1.
Remove upper connecting rod bearing shell from
connecting rod. Mark cylinder number and letter U in
flat surface of bearing tang.
2.
Use piston ring expander (1) to remove four rings (2)
from each piston (3).
NOTE
The upper three rings are compression rings
and lower ring is oil ring.
3.
Place a tag on rings, recording cylinder number of
piston for future reference.
4.
Use internal snap ring pliers to remove snap ring (4)
from either side of piston (3). Discard snap rings.
5.
Heat piston in boiling water for 15 minutes.
Use insulated gloves to prevent injury
from boiling water or hot piston.
CAUTION
Do not use hammer to remove piston pin. This can
distort piston.
6.
Remove piston (3) from water and use blunt tool to
remove piston pin (5) from piston and rod assembly.
7.
Remove connecting rod (6) from piston (3).
8.
Remove remaining connecting rod snap ring (4).
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