TM 10-4610-229-24
3-76. PISTON AND CONNECTING ROD REPLACEMENT/REPAIR (CONT)
c. Assembly
1 Heat connecting rod to 350°-400°F. Check temperature with heat chalk.
NOTE
Old bearing is pressed out as new bearing is pressed in.
2
Install bearing. Press bearing into connecting rod.
3
Check piston pin bore diameter after the bearing is Installed. Correct dimensions are 2.0009-2.0015 in.
4
Clean ring grooves.
NOTE
The two compression rings have marks UP-1 and UP-2. Make sure rings are installed with marks
toward top of piston with UP-1 as top ring.
5
Install piston rings on piston.
6 Stagger ring gaps 180
.
7
Install piston on connecting rod.
8
Lubricate piston pin with clean engine oil (MIL-L-2104).
9
Install piston pin.
10
Install retainer rings. Make sure retainer rings are seated in grooves of piston.
d. Installation
1
Lubricate piston rings, connecting rod bearings, and cylinder liners with engine oil (MIL-L-2104).
NOTE
Make sure connecting rods are installed with marking on opposite side of camshaft.
2
Using piston ring compressor, compress piston rings.
3
Install piston in correct cylinder.
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