Cleaning; Disassembly - BOMBARDIER ski-doo Tundra Scandic 2004 Series Shop Manual

NOTE: Engine must be removed from chassis to
perform the following procedures.

CLEANING

Discard all oil seals, gaskets, O-rings and sealing
rings.
Clean all metal components in a non-ferrous metal
cleaner. Use gasket remover (P/N 413 708 500)
accordingly.
Remove old paste gasket from crankcase mating
surfaces with gasket remover (P/N 413 708 500).
CAUTION: Never use a sharp object to scrape
away old sealant as score marks incurred are det-
rimental to crankcase sealing.

DISASSEMBLY

General
To remove drive pulley, refer to DRIVE PULLEY.
To remove magneto, refer to CDI SYSTEM.
2,3, Crankshaft Bearing
To remove PTO side bearings no. 3 from crank-
shaft, install half rings (P/N 420 977 475) and puller
ring (P/N 420 977 490) on the bearing.
1. Half ring
2. Puller ring
Apply synthetic grease (P/N 413 711 500) on the
crankshaft end and install protective cap (P/N 420
876 552).
MMR2004-113_04_04A.FM
Subsection 04 (593 ENGINE TYPE)
Using screws (P/N 420 840 681) Install bearing
puller (P/N 420 877 635) on the half rings.
Secure the bearing puller in a vise by one of its rib.
BEARING PULLER SECURED IN THE VISE
CAUTION: Never use any air impact tool for
tightening the puller bolt.
Lubricate the puller bolt and then proceed with
tightening the puller bolt until the bearing comes
out.
Follow the same procedure for the inner PTO side
bearing.
NOTE: In the case of damaged bearing or less
clearance between crankshaft counterbalance
and the bearing or on the MAG side bearing, use
bearing separator (Snap-On tool P/N CJ951 or
SPX/OTC tool P/N 1124) to facilitate the removal.
1. Bearing separator
Procedure for MAG side bearings nos. 2 and 3 is
same as of PTO side with the exception of protec-
tive cap (P/N 420 876 557).
Section 04 ENGINE
04-04-13