Ski-Doo FORMULA S 1997, Shop Manual

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Section 03 ENGINE
Sub-Section 02 (277 ENGINE TYPE)
03-02-9
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 installa-
tion.
Install bearings with groove outward.
NOTE : Crankshaft end play requires adjust-
ment only when crankshaft and / or crank-
case is replaced. Prior to magneto side bearing
installation, determine crankshaft end play and in-
stall required shim(s) on crankshaft extension. For
the crankshaft end play adjustment procedure, re-
fer to LEAK TEST AND ENGINE DIMENSION
MEASUREMENT 03-04.
To install new seal nos. 3 and 4 into crankcase
use oil seal pusher (P / N 420 9779 20).
1. Crankcase half
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
2778 75) for MAG side seal
no. 4 and (P / N 420
8766 60) for PTO side seal no. 3 .
CAUTION : To ensure appropriate crank-
shaft bearing lubrication, seal outer sur-
face must be pressed on seal crankcase
shoulder.
Using a press, install crankshaft into MAG side
crankcase half.
Press down PTO side crankcase half onto crank-
shaft using appropriate spacer(s).
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A00C3ZA
420 9779 20
1
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