TM 10-4930-351-14
0109 00
INSTALL PISTON ASSEMBLY AND CYLINDER (Refer to Figure 7.)
This procedure applies to either piston assembly and cylinder.
INITIAL SET-UP:
Tools:
Materials/Parts Required
Snap Ring Pliers (or Needle Nose)
Bearing (WP 0117 00, Item 41)
(WP 0113 00, Item 3)
Gasket, Cylinder (WP 0117 00, Item 51)
Socket, Socket Wrench, 14 mm
(WP 0113 00, Item 3)
Equipment Condition:
Torque Wrench, 50 ft. lb. capacity
Crankshaft installed
(WP 0113 00, Item 3)
Piston rings installed
Cylinder checked
1.
If removed during engine disassembly, install and tighten securely eight cylinder studs (1).
NOTE
The cylinder is off-set. Ensure cylinder is correctly positioned inside cylinder studs.
2.
Position cylinder (2) inside cylinder studs (1).
3.
Turn flywheel so that crankshaft journal (3) for cylinder being installed is at TDC.
4.
Insert connecting rod (4) in piston (5). Install piston pin (6) through piston (5) and connecting rod (4). Install the two
snap rings (7) to hold piston pin (6) in place.
NOTE
When installing piston, combustion chamber recess must be positioned toward injector
side of engine. Bottom end of cylinders are chamfered for easier piston ring installation.
5.
Insert piston assembly (4 thru 7) up into bottom end of cylinder (2) until piston rings have passed into cylinder.
NOTE
Quantity of cylinder gaskets may vary. Ensure that the same number of gaskets that were
removed are replaced.
6.
Install cylinder gasket (8). Set cylinder (2) in crankcase (9). Press cylinder (2) into crankcase (9).
NOTE
Bearing halves are keyed together one way. Connecting rod and rod cap are also keyed
together one way.
7.
Align and install new bearing half (10) on rod cap (11).
8.
Position rod cap (11) on underside of crankshaft journal (3).
9.
Align and install new bearing half (10) on the topside of crankshaft journal (3).
10. Position connecting rod (4) around crankshaft journal (3). Insert and start cap screws (12) in rod cap (11).
11. Install and torque cap screws (12) to 26 to 30 ft. lbs. (35-41 Nm).
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