Page 208
REPAIR INSTRUCTIONS, PART 1
Timing Gear Mounting Plate
Installation
[211 AA]
Rotate the cylinder block so the rear surface is at
the top.
271
Figure 271 — Timing Gear Mounting Plate and Timing
Gears
The cylinder head is installed after the timing gear
plate is in place. Do not apply sealant to the rear
of the cylinder head until ready to assemble the
head on the cylinder block.
272
Figure 272 — Sealant Application Patterns — Head and
Block to Plate
1. Apply a 2 mm (5/64-inch) bead of MACK
approved sealant to the rear face of the
cylinder block according to the pattern
shown.
2. Within 20 minutes of sealant application,
assemble the timing gear mounting plate
over the guide pins in the cylinder block.
3. Install new timing gear mounting plate
attaching screws.
4. Using a torque wrench, tighten the attaching
screws in sequence according to
specification.
273
Figure 273 — Timing Gear Plate Torque Sequence
1. Timing Gear Mounting
Plate
2. Cylinder Head
3. Cylinder Block
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