TM-9-2320-272-24-4

TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 4 OF 4

JUNE 1998

TM-9-2320-272-24-4 - Page 194 of 836

TM 9-2320-272-24-4

5-28. CYLINDER LINERS AND BLOCK MAINTENANCE (Contd)

c. Engine Block Disassembly

NOTE

Mark position and location of pipe and expansion plugs for

installation.

1.

Remove expansion plug (1) from engine block (2). Discard expansion plug (1).

2.

Remove three expansion plugs (12) from engine block (2). Discard expansion plugs (12).

3.

Remove two expansion plugs (11) from engine block (2). Discard expansion plugs (11).

4.

Remove drainvalve (10) from engine block (2).

5.

Remove expansion plug (4) from engine block (2). Discard expansion plug (4).

6.

Remove pipe plugs (5) and (9) from engine block (2).

7.

Remove expansion plug (6) from engine block (2). Discard expansion plug (6).

8.

Remove expansion plug (7) from engine block (2). Discard expansion plug (7).

9.

Remove expansion plug (8) from engine block (2). Discard expansion plug (8).

NOTE

Perform step 10 if dowel pins are damaged.

10.

Remove four dowel pins (3) from engine block (2). Discard dowel pins (3).

11.

Remove three pipe plugs (16) from engine block (2).

12.

Remove expansion plugs (13) and (17) from engine block (2). Discard expansion plugs (13) and (17).

13.

Remove expansion plug (15) from engine block (2). Discard expansion plug (15).

5-188