Can-Am DS 450 2008, Shop Manual

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Section 03 ENGINE
Subsection 08 (CRANKCASE/CRANKSHAFT)
NOTE: It takes approximately 11 minutes to heat
up the inner ring to the recommended tempera-
ture.
Turn inner ring upside down several times during
the heating process to properly distribute the heat.

WARNING
Do not touch heated ring with bare hands.
Wear heat resisting gloves before handling
the heated ring.
Install a M8 or M10 screw and nut between the
crankwebs. Unscrew nut to apply a slight pres-
sure against crankwebs to prevent misaligning the
crankshaft while pressing in the inner ring.
When inner ring temperature is reached, take ring
and drop it onto crankshaft with the flanged edge
down.
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1. Flanged edge
Use a suitable installer and press inner ring on
crankshaft until it bottoms.
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1. M8 or M10 screw and nut
2. Pusher
3. Inner ring
Crankcase Assembly
The assembly of the crankcase is essentially the
reverse of the disassembly procedure.
However pay attention to following details.
Install a new crankcase gasket.
CAUTION: Temporarily secure connecting rod
to the front of crankcase. Otherwise connect-
ing rod will crush the oil spray nozzle no. 10.
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1. Oil spray nozzle
2. Secure connecting rod here
For installation of balancer shaft (matching the bal-
ance drive) refer to
BALANCER SHAFT
below.
BALANCER SHAFT
Balancer Shaft Removal
Refer to
CRANKCASE
.
Balancer Shaft Inspection
Check main journal diameter of balancer shaft for
wear.
BALANCER SHAFT MAIN JOURNAL
NEW
16.985 to 16.994 mm
(.6687 to .6691 in)
SERVICE LIMIT 16.950 mm (.6673 in)
Inspect the balance shaft gear for chipped, worn
or broken teeth. Replace if necessary.
NOTE: If any imperfection is detected, replace al-
so the crankshaft gear, refer to
CRANKSHAFT
be-
low.
Balancer Shaft Installation
The installation is the reverse of the removal pro-
cedure. However, pay attention to the following
details.
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