BOMBARDIER 1980 Shop Manual page 72

SECTION 03
SUB-SECTION 02, (ENGINES)
@@ Because of cap nuts, cylinder studs have to be
screwed mto the crankcase so that they do not protrude
by more than 82.5 mm (3.250") on exhaust side
and
57.5
mm
(2.260")
on intake side.
Apply "Loctite 242" on the threads of the two studs
screwed above the intake ports.
@@@Place a clean cloth over crankcase to prevent
Clrclips from falling into crankcase then use a pointed
tool to remove circlips from piston. .
Drive the gudgeon pins or out using a suitable drive punch
and hammer .
. . . CAUTION: When tapping gudgeon pin in or out
' " of piston, hold piston firmly in place to eliminate
the possibilities of transmitting shock and pressure to
the connecting rod.
At assembly, place the pistons over the connecting rods
with the letters AUS (over an arrow on the piston dome)
facing the direction of the exhaust port.
(354-454 ENGINE 1YPES), PAGE 14
Piston to wall clearance should be:
TYPE
354
454
MINIMUM
0.080 mm
(.0031 ")
0.090
mm
(0035")
MAXIMUM
0.180
mm
(007")
0.200
mm
(008")
Once the circlips are installed, turn each circlip so that
the circlip break is not directly in line with piston notch.
Using very fine emery cloth, remove any burrs on piston
caused through circlip installation.
~
~
>'
,
~
~.
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Piston notch
Clfclip break