REPAIR INSTRUCTIONS
Page 163
DOWEL PIN INSTALLATION
To install a replacement crankshaft dowel pin:
1. Position the dowel pin in a 0.5562-inch
(14.1275-mm) diameter unthreaded hole in
the rear flange of the crankshaft. The pin
must be installed with the flat surface
aligned parallel to the center of the
crankshaft as shown in Figure 154.
2. Use a soft metal hammer and punch to drive
the pin into the hole. The pin must be firmly
seated and protrude 0.77 inch (19.56 mm)
from the crankshaft.
154
Figure 154 — Dowel Pin Alignment
Crankshaft Gear Replacement
[212 HV]
INSPECTION
After inspecting the crankshaft and determining
that it is within specification, inspect the
crankshaft gear for cracks and broken, worn or
chipped teeth. If the gear is defective, it must be
replaced.
REPLACEMENT
Refer to Figure 155.
1. Using a suitable puller, such as J 21834-4A,
or equivalent, remove the gear and key.
The threads in the end of the crankshaft are
M8 x 1.25.
2. Clean the gear mounting surface. It should
be free of grooves, scratches and burrs. Use
a file, sandpaper or crocus cloth, as
required.
Take care not to damage the key slot while
installing the key.
3. Insert the key (4) into the key slot (3). Lightly
tap the key with a soft metal hammer to seat
it in the slot.
4. Heat the replacement gear (1) to
approximately 250
°
F (121
°
C) in a
temperature-controlled oven or on a hot
plate.
Wear protective gloves when handling the heated
crankshaft gear to prevent burns or personal
injury.
Take care not to damage the gear teeth while
seating the gear.
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