Section 04
ENGINE
Subsection 03
(443 AND 552 ENGINE TYPES)
MMR2004-112_04_03A.FM
04-03-21
All Models
At seal
no. 2
assembly, apply a light coat of lithium
grease on seal lip.
For bearing lubrication purpose, a gap of 1.0 mm
(.040 in) must be maintained between seals and
bearings.
When installing plain oil seals (seal without locat-
ing ring or without spacing legs), ensure to main-
tain 1.0 mm (.040 in) gap.
1. Bearing
2. Feeler gauge
3. Plain oil seal
A. 1 mm (.040 in)
Crankcase halves
nos. 1
and
5
are factory matched
and therefore, are not interchangeable as single
halves.
Crankcase Assembly
IMPORTANT:
The total assembly sequence, in-
cluding sealing compound spreading, screwing
and torquing of bolts according to the proper se-
quence must be performed within 10 minutes.
Before screwing both parts of crankcase, seal it
with a sealing compound (P/N 420 297 906). Make
sure surfaces are clean and degreased before ap-
plying sealing compound.
Spread a seam of 1.2 mm (1/16 in) maximum in
diameter on surface of lower crankcase half.
TYPICAL
As far as possible, sealing compound must be ap-
plied in one run to avoid any risks of leaking through
the crankcase.
Align both crankcase halves before tightening
screws.
Position the crankcase halves together and tight-
en bolts by hand then install and tighten armature
plate on magneto side to correctly align the crank-
case halves.
Screw the 4 central bolts (bolts
nos. 1
to
4
in the
torquing sequence) to squeeze compound be-
tween crankcase halves before it starts to dry.
NOTE:
Sealing compound spreading plus screw-
ing of engine four central bolts must be performed
within 2 minutes to ensure a good sealing and
avoid linking.
Screw all crankcase bolts in place in the following
sequence and to the appropriate torque through a
two steps torquing: first, screw bolts up to 60% of
the final torque (13 N•m (115 lbf•
in
) for M8 bolts),
then, tighten to the required torque (i.e. 22 N•m
(16 lbf•ft)).
552 Engine Type
TIGHTENING SEQUENCE FOR 552 ENGINE TYPE
A17C07A
1
A
2
3
A30C2WA
A17C08A
11
3
1
7
9
13
5
14 10
6
4
2 8
12
Summary of Contents for ski-doo Tundra Scandic 2004 Series
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