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 850 of 1563

TM 9-2815-220-24

ROCKER ARM ASSEMBLY AND COVER REPAIR

0105 00

WP 0105 00-2

DISASSEMBLY

1. Check rocker arm (1) side clearance.

a. Check side clearance (A) between rocker arm cover (2) and rocker arm (1), using a feeler

gauge.

Replace rocker arms that do not meet the specifications in the following table.

Location

Sizes and Fits of New

Parts inches (mm)

Wear Limits

A

(Side clearance between

rocker arm cover and

rocker arm)

0.0060 (0.1524)

0.0140 (0.3556)

0.0200 (0.508)

1

A

2

2. Remove rocker arm assembly (3) from

cover (2).

2

3

6

5

4

1

7

a. Remove machine thread plug (4).

b. Remove straight shaft (5) and rocker arm

assembly (3) from rocker arm cover (2).

3. Remove jam nut (6) and adjusting screw (7)

from rocker arm (1).