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Mack MP7 - Flywheel Bench Procedures; Flywheel Ring Gear Replacement

Mack MP7
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REPAIR INSTRUCTIONS, PART 1
Page 159
3. Temporarily install a cylinder head screw in a
screw hole next to the cylinder.
203
Figure 203 — Cylinder Liner Installation
4. Using cylinder liner installation plate,
9996599, and handle, 9992000, press the
liner (with spacer if appropriate) into the
cylinder bore until seated.
5. Secure the cylinder liner in place using two
liner hold-down tools, 9996966.
The cylinder liners must be installed and secured
in place within 20 minutes after application of the
sealant to the liners.
FLYWHEEL BENCH
PROCEDURES
Flywheel Ring Gear Replacement
[212 UB]
1. Heat the ring gear around the outer edge
with a torch.
204
Figure 204 — Ring Gear Removal
2. Use a punch to remove the ring gear from
the engine flywheel.
3. Use a steel brush to clean the engine
flywheel.
Use caution not to heat the ring gear excessively
or damage will occur to the new ring gear.
4. Heat the new ring gear with a torch or in a
furnace to 180–200°C (356–392°F). Heat
the gear evenly around the entire surface. A
good indication that the correct temperature
has been reached is when bright metal turns
a bluish color.
1. Handle 9992000
2. Liner Installation Plate
9996599
3. Liner Hold-Down Tool
9996966
4. Cylinder Liner

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