Ski-Doo Formula S 1998, Shop Manual

Page: 83 / 338

Section 04 ENGINE
Subsection 02 (277 ENGINE TYPE)
04-02-8
NOTE: Engine must be removed from chassis to
perform the following procedures.
CLEANING
Discard all oil seals and gaskets.
Clean all metal components in a non-ferrous met-
al cleaner.
DISASSEMBLY
General
To remove drive pulley, refer to DRIVE PULLEY
05-03.
To remove magneto, refer to MAGNETO 04-05.
2,6, Crankcase Half
Heat to 110-120°C (230-248°F) all around bearing
seat on PTO side. Install puller (P/N 420 8762 98)
to plate (P/N 529 0249 00) with washer under
screw heads and extract PTO side crankcase half
no. 1 .
1. Plate
2. Flat washer
Heat to 110-120°C (230-248°F) all around bearing
seat on MAG side. Install puller with plate, long
bolts M8 x 110 mm and flat washers. Extract
MAG side crankcase half
no. 2 .
1. Plate
2. Flat washers
To remove seals nos. 3 and 4 , push from outside
the crankcase towards the inside.
To remove bearings nos. 5 and 6 from crankshaft
use a protective cap and special puller as illustrated.
1. Protective cap
2. Special puller
INSPECTION
Refer to ENGINE DIMENSIONS MEASUREMENT
04-04.
ASSEMBLY
Install connecting rod with its lubrication slot on
big end facing exhaust side.
Smear anti-seize lubricant (P/N 413 7010 00) on
part of crankshaft where bearing fits.
A05C0GA
1
M8 x 40
2
M8 x 30
A05C0HA
1
M8 x 110 mm
2
1
2
A00B28A