Repair Connecting Rod and Piston Group.

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Install the camshaft

TM-55-1905-223-24-3 Ship s Service Generator for Landing Craft Utility (LCU) NSN 1905-01-154-1191 Manual

FIGURE 4-28. Connecting Rod and Piston Group.

TM 55-1905-223-24-3

4-14. Repair Connecting Rod and Piston Group.

This task covers:

a. Disassembly b. Inspection

c. Repair,

d. Assembly

INITIAL SETUP:

Tools

Equipment Condition

Tool kit, general mechanic's

Piston assembly and connecting rods

rail and marine diesel engine,

removed (para. 3-24).

5180-00-629-9783

Piston ring expander P/N ST-763

Piston ring compressor P/N 3822736

Connecting rod guide pins P/N 3375601

Bushing driver P/N ST-1242

Rod checking fixture P/N ST-561

Locating mandrel P/N ST-563

Boring machine P/N 3375115

Arbor press, 4920-00-373-9376

Piston ring groove wear gauge

P/N ST-560

Internal snap ring pliers,

5120-00-595-9551

Dial indicator, 5210-00-277-8840

Dial bore gauge P/N 3376619

Materials/Parts

Piston ring set P/N 3801056

Machine bolt P/N 219153

Piston pin P/N 70550

Piston ring bushing P/N 187420

Bearing P/N 214950

Retaining ring P/N 175755

Piston pin P/N 191970

Lubriplate, Item 28, Appendix C

DISASSEMBLY

Disassemble the engine connecting rods as follows (1, Figure 4-28):

(1)

Remove the machine bolts (10) and separate the connecting rod (1).

(2)

Remove the bearings (11).

(3)

Mark the cylinder number and the letter "u" in the flat surface of the bearing tang.

Change 1

4-70