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 1104 of 1563

TM 9-2815-220-24

CYLINDER ASSEMBLY REPLACEMENT

0133 00

REMOVAL (Continued)

CAUTION

Before removing each cylinder assembly, the crankshaft must be turned to

position the piston of the cylinder being removed to top center.

Make certain

each piston is properly positioned before attempting cylinder removal.

Damage to piston may occur.

Model 2DR Front Turning Tool:

(item 3, WP 0177)

Position fabricated engine turning tool 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.

Model 2DR Flywheel Turning Tool:

(item 4, WP 0177)

Position fabricated engine turning tool 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.

NOTE

Model 2DR crankshaft may be

turned from the flywheel or from

the power takeoff coupling.

Flywheels on models 2DR are

different and require different

turning tools than those for engine

models 2CA and 2DA.

4. Install proper turning tool for your engine

model as shown.

Models 2CA and 2DA

Flywheel Turning Tool:

(item 136, WP 0176)

Transmission spur gear should already

be in place on flywheel; if not, place in

position and secure with two bolts.

Use splined wrench (turning tool) to

turn engine crankshaft.

WP 0133 00-4