TM-9-2815-225-34-P

ENGINE, DIESEL: 6 CYLINDER IN-LINE TURBOCHARGED, CUMMINS MODEL NTC-400

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST

JULY 2005

TM-9-2815-225-34-P - Page 158 of 736

Figure 5. Piston and Connecting Rod Removal.

TM 9-2815-225-34&P

0012 00

0012 00-6

CYLINDER BLOCK COMPONENTS REMOVAL (Contd)

PISTONS AND CONNECTING RODS

1.

Place cylinder block (7) in a vertical position with rear of cylinder block (7) facing down.

WARNING

Eye protection must be worn when using wire brush for

cleaning. Failure to do so may result in injury to personnel.

2.

Using a rotary wire brush or aluminum bladed scraper, remove carbon deposits from upper inside

of cylinder walls (3).

3.

Rotate crankshaft (8) until connecting rod cap (6) is accessible.

NOTE

Ensure connecting rod cap and connecting rod are identified

together by cylinder number. Mark cylinder number and the

Letter L on flat surfaces of connecting rod cap and connecting

rod before removal.

4.

Loosen two connecting rod bolts (5) until there is approximately 3/8 in. (9.5 mm) clearance

between head of bolts (5) and connecting rod cap (6).

5.

Using a soft-faced hammer, tap on head of bolts (5) until connecting rod cap (6) and connecting

rod (1) are separated.

6.

Remove bolts (5) and connecting rod cap (6) from connecting rod (1) and crankshaft (8).

7.

Install two nylon guide screws (4) in connecting rod (1).

8.

Push piston (2) and connecting rod (1) out of cylinder liner (3).

9.

Remove two nylon guide screws (4) from connecting rod (1).

10.

Repeat steps 1 through 9 to remove remaining five connecting rod caps (6), connecting rods (1),

and pistons (2).

11.

For piston and connecting rod repair, refer to WP 0018 00.

2

1

6

5

6

5

4

4

7

1

8

3