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 1249 of 1563

TM 9-2815-220-24

CAMSHAFT DRIVE HOUSING REPAIR

0148 00

THIS WORK PACKAGE COVERS:

Inspection, Repair

INITIAL SETUP:

Tools and Special Tools:

General mechanic’s tool kit (item 121, WP 0176)

Inside micrometer caliper set (item 16, WP 0176)

Telescoping gauge set (item 54, WP 0176)

Personnel Requirements:

Track Vehicle Repairer (1) 63H10

Equipment Conditions:

Engine on maintenance stand (WP 0130)

Camshaft, drive gears, and associated parts

removed (WP 0146)

INSPECTION

NOTE

Left and right camshaft drive housings are mirror images of each

other.

They have different part numbers, but all repair procedures

and measurements are identical.

1. Inspect housing (1) for cracks or damage.

Refer to WP 0028.

2. Inspect studs (2) and screw thread inserts (3).

Refer to WP 0028.

3. Measure inside diameter (4) of bearing surface in housing (1) against the following limits.

Point of Measurement

Sizes and Fits of New Parts

inches (mm)

Wear Limits

A

(Inside diameter of bearing surface)

2.5000 (63.5)

2.5010 (63.5254)

2.5015 (63.5381)

1

2

3

A

WP 0148 00-1