Assembly - BOMBARDIER ski-doo Tundra Scandic 2004 Series Shop Manual

Section 04 ENGINE
Subsection 02 (277 ENGINE TYPE)

ASSEMBLY

Install connecting rod with its lubrication slot on
big end facing exhaust side.
Smear anti-seize lubricant (P/N 293 800 070) on
part of crankshaft where bearing fits.
Prior to installation, place bearings into an oil con-
tainer and heat the oil to 75°C (167°F) for 5 to 10
min. This will expand bearings and ease installation.
Install bearings with groove outward.
NOTE: Crankshaft end play requires adjustment
only when crankshaft and/or crankcase is replaced.
Prior to magneto side bearing installation, deter-
mine crankshaft end play and install required
shim(s) on crankshaft extension. For the crankshaft
end play adjustment procedure, refer to LEAK TEST
AND ENGINE DIMENSION MEASUREMENT.
Prior to crankcase adjoining, install a protector
sleeve on each crankshaft extension to prevent oil
seal damage. Apply a light coat of lithium grease
on seal lip. Spray some new injection oil on all
moving parts of the crankshaft.
Install crankshaft seals with pusher (P/N 420 277
875) for MAG side seal no. 4 and (P/N 420 876
660) for PTO side seal no. 3.
CAUTION: To ensure appropriate crankshaft
bearing lubrication, seal outer surface must be
pressed against seal crankcase shoulder.
Using a press, install crankshaft into MAG side
crankcase half.
04-02-12
Press down PTO side crankcase half onto crank-
shaft using appropriate spacer(s).
Torque the screws no. 7 to 22 N•m (16 lbf•ft) fol-
lowing illustrated sequence.
MMR2004-111_04_02A.FM