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 228 of 1563

TM 9-2815-220-24

INTAKE AND EXHAUST VALVE CLEARANCE ADJUSTMENT

0034 00

BEFORE ADJUSTMENT (Continued)

Model 2DR Front Turning Tool:

Position improvised engine turning tool

(item 3, WP 0177) on power takeoff

coupling and secure with four 7/16-20

UNF x 1-1/2 inch machine bolts.

Use a

1-1/4 inch socket and a 3/4-inch breaker

bar to turn engine crankshaft.

NOTE

Model 2DR crankshaft may be

turned from the flywheel or from

the power takeoff coupling.

Flywheels on models 2CA and

2DA are the same.

Flywheels on

2DRs are different and require

different turning tools.

Model 2CA and 2DA

Flywheel Turning Tool:

Transmission spur gear should

already be in place on flywheel, if not

place in position and secure with two

bolts.

Use splined turning tool

splined wrench, (item 136, WP 0176)

Model 2DR Flywheel Turning Tool:

Position improvised engine turning tool

(item 4, WP 0177) on flywheel, and

secure with four 7/16-20 UNF x 1-1/2

inch machine bolts.

Use a 1-1/4 inch

socket and a 3/4-inch breaker bar to turn

engine crankshaft.

WP 0034 00-2