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Mack MP7 - Crankshaft Rear Seal Installation; Flywheel and Pilot Bearing Installation

Mack MP7
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REPAIR INSTRUCTIONS, PART 1
Page 229
320
Figure 320 — Camshaft Position Sensor
Crankshaft Rear Seal Installation
[212 JH]
1. Thoroughly clean the surface of the
crankshaft flange.
321
Figure 321 — Crankshaft Rear Seal Installation
2. Apply sealant to the outer rim of the new
seal.
Inspect the remover/installer carefully. Any
damage on the tool will destroy the seal. Failure
to heed this caution may result in severe
component damage.
3. Lubricate the seal lips with clean engine oil.
4. Insert the handle, 9992000, in the
remover/installer, 9990113.
5. Slide the seal onto the remover/installer,
9990113, flat side toward the tool.
6. Using a hammer, tap the seal into the gear
until the remover/installer bottoms.
7. Remove the tools.
8. Inspect the felt ring for proper seating.
Flywheel and Pilot Bearing
Installation
[212 VC]
After resurfacing, any flywheel with drilled
balance holes on the clutch side requires
rebalancing by a machine shop.
On vehicles equipped with an automatic
transmission, it may be necessary to install
different components to the flywheel retaining
screws. Refer to the Automatic Transmission
Drive Arrangement Assembly Instructions, 5-903,
for installation instructions.
When installing the flywheel, insert two alignment
studs in the crankshaft flange to aid in the
installation.
1. Position the flywheel over the dowel pin and
alignment studs on the crankshaft rear hub.
1. Rear Main Seal 2. Rear Main Seal Installer,
9990113

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