Flywheel - Install

TM 9-2320-312-24-2

Truck Engine

Disassembly and Assembly Section

1. Heat the flywheel ring gear to a maximum

2. Install Tooling (A) on the flywheel. Fasten a

temperature of 204 C (400 F). Do not use a

suitable lifting device to the flywheel.

torch to heat the flywheel ring gear. Install the

flywheel ring gear on the flywheel. Position the

flywheel ring gear with the part number toward

the crankshaft. Allow the flywheel ring gear to

cool. Use a soft hammer in order to seat the

flywheel ring gear against the shoulder of the

flywheel.

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Illustration 127

3. Remove top bolt (1) and the washers. Install a

guide bolt that is longer than top bolt (1). Remove

seven remaining bolts (1) and the washers.

4. Remove flywheel (2) from the guide bolt. The

g00613482

weight of flywheel (2) is approximately 23 kg

Illustration 128

(50 lb).

2. Install Tooling (A) on flywheel (2). Fasten a

suitable lifting device to flywheel (2).

5. Inspect the flywheel ring gear. Replace the ring

gear, if necessary. Place the flywheel on a wood

3. Place flywheel (2) in the original position on the

block. Use a hammer and a punch in order to

guide bolt. Align the arrows on flywheel (2) and

remove the flywheel ring gear.

the crankshaft.

i01747268

4. Apply 9S-3263 Thread Lock Compound to the

Flywheel - Install

threads of eight bolts (1).

5. Install seven bolts (1) and the washers. Remove

SMCS Code: 1156-012

the guide bolt and install remaining bolt (1) and

the washer. Tighten the bolts evenly to a torque

Installation Procedure

of 120 20 Nm (90 15 lb ft).

Table 24

6. Check the flywheel runout. Refer to Testing and

Adjusting, "Flywheel - Inspect" for the correct

Required Tools

procedure.

Part

Tool

Part Description

Qty

Number

138-7573

Link Bracket

Note: Drill and tap the new flywheel ring gear if the

outer bolt holes of the flywheel are used . Use the

flywheel as a template and drill twelve holes to a

diameter of 8.2 mm (0.32 inch). Thread the holes

with a tap.