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 1130 of 1563

TM 9-2815-220-24

CYLINDER ASSEMBLY REPAIR

0135 00

REPAIR (Continued)

10. Repair cylinder (1) cooling fins.

a. Straighten bent cooling fins (A) as near as possible to their original spacing.

b. Use a fine mill file to remove sharp corners of broken cooling fins (A).

Do not remove

more metal than necessary to produce a smoothly blended edge on the damaged fin.

11. Replace damaged, bent, or stripped studs (30,31,32, or 33).

Refer to WP 0028.

Callout

Setting Height

Quantity

Stud Dimensions

30

31/31 (24.6062)

3

5/16-18 (13/16) x 5/16-24 (19/32) x 1-11/16

31

1-3/32 (27.7813)

1

7/16-14 (25/32) x 7/16-20 (1-1/64) x 1-27/32

32

21/32 (16.6688)

2

5/16-18 (11/16_ x 5/16-24 (9/16) x 1-5/16

33

31/32 (24.6062)

4

3/8-16 (53/64) x 3/8-24 (7/8) x 1-3/4

12. Replace defective screw thread inserts (34,35,36,37 or 38).

Refer to WP 0028.

WARNING

13. Repair scratches or nicks on mating surface (B) of valve rocker arm cover (39) and

cylinder (1) mating surface (C) by polishing with crocus cloth (item 9, WP 0173) dipped

in cleaning compound (item 8, WP 0173).

WP 0135 00-16

34

31

35

30

C

B

39

38

3

37

B

33

32

C

A

A

A

1