TM-9-2815-220-24

AVDS-1790 2CA, 2DA and 2DR Air-Cooled 12-Cylinder Diesel Engines

TECHNICAL MANUAL; UNIT, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL FOR AVDS-1790 2CA, 2DA and 2DR Air-Cooled 12-Cylinder Diesel Engines

TM-9-2815-220-24 - Page 1117 of 1563

TM 9-2815-220-24

CYLINDER ASSEMBLY REPAIR

0135 00

DISASSEMBLY (Continued)

WARNING

Valves and locks are under heavy spring tension.

Exercise extreme

care when removing locks, seats, and springs.

Each valve spring set

consists of three separate springs.

Failure to comply may result in

injury.

3. Remove exhaust valve (6).

a. Compress exhaust valve springs (7) by turning screw (8).

b. Remove two valve spring locks (9) from the groove in exhaust valve (6) stem.

c. Tap exhaust valve spring retainer (10) to free valve spring locks (9).

d. Carefully loosen screw (8) to release valve springs (7).

4. Remove intake valve (11).

a. Compress intake valve springs (12) by turning screw (13).

b. Remove two valve spring locks (9) from the groove in intake valve (11) stem.

c. Tap valve spring retainer (14) to free valve spring locks (9).

d. Carefully loosen screw (13) to release valve springs (12).

5. Remove valve lifter assembly (3).

a. Remove four rocker cover screws (4) with flat washers (5).

b. Remove valve lifter assembly (3) from cylinder assembly (1).

6

7

9

10

8

4,5

3

13

9

14

12

11

1

WP 0135 00-3