AD Boivin 2002 Snow Hawk, Service Manual

Page: 66 / 173

ENGINE / CYLINDERS AND CYLINDER HEADS 7 - 16
Reassambling
Apply an anti-seize compound (P/N 413 7010 00) to the part of
the crankshaft that takes the bearing.
To verify whether or not the play between the bearing and the
counterweight is adequate, use a thickness gauge (P/N 420
8766 20).
Install the second bearing. Use the positioning gauge (P/N 420
8768 24) to position the bearing correctly.
Place the bearings in a container filled with oil heated to 75
0
C
(167
0
F). The bearings will dilate which will make installation
easier. Install the bearings by placing the groove as indicated in
the enlarged illustration.
The bearings are pushed along the crankshaft until they come to
rest against the spoke. This spoke provides the space needed
for lubricating the bearing.
When installing the ring seals, apply a thin coat of lithium grease
on the lip of the ring seal.
To make sure the bearings are lubricated, there must be a
space of 1.0 mm (0.040 in) between the ring seals and the
bearings.
If installing solid ring seals (ones without ribs and without lugs),
make sure there is at least a play of 1 mm (.040 in).
The 2 halves of the housing are matched in the factory and
therefore, are not interchangeable and cannot be obtained
separately.
Before assembling the 2 half-housings, spray new injection oil
(or its equivalent) on all the moveable parts of the housing.
Spray the Curing Spray (P/N 413 7081 00) on the contact
surfaces to ensure that the sealant dries completely. In addition
to speeding up the drying process, this product fills the spaces
better.
Next, coat the contact surfaces of the housing with a coat of
sealant.
Assemble the two halves of the housing and tighten the nuts
manually Then, install and tighten the armature flange on the
magneto side to correctly align the halves of the housing.
Spacer
gauge
Oil seal
Bearing
1 mm
(0.040 in)