BOMBARDIER 1980 Shop Manual page 127

BOTTOM END
CLEANING
Discard all seals. gaskets and" 0" rings.
Clean all metal components in a non-ferrous metal
cleaner.
Remove old sealant from crankcase mating surfaces with
Bombardier sealant stripper.
. . , CAUTION: Never use a sharp object to scrape
... away old sealant as score marks incurred are
detrimental to crankcase sealing.
DISASSEMBLY AND ASSEMBLY
00
0Crankcase halves are factory matched and there-
fore. are not interchangeable as single halves.
Prior to joining of crankcase halves. apply "Loctite 515"
(no. 413 7027) on mating surfaces.
Position the crankcase halves together and tighten nuts
(or bolts) by hand then install armature plate (tighten)
on magneto side to correctly align the crankcase halves.
Torque nuts (or bolts) to 20 Nom (15 ft-Ibs) following
illustrated sequence.
6
8
00Torque to
20
Nom
(15
ft-Ibs).
0At assembly on crankcase. apply "Loctite 242" or
equivalent on threads.
0Torque to
36
Nom
(26
ft-Ibs).
@@To remove ball bearings from crankshaft. use a
special puller (see Tools section).
PTO Side
SECTION 03
SUB-SECTION 02, (ENGINES)
Prior to installation, place bearings into an oil container
heated to 1 00
0
C (21 0
0
F).
This will expand bearings and ease installation. Install
bearings with groove as per exploded view.
P.T.O. side (all engines)
At inner bearing installation. provide a free play of 2 mm
(.080") for lubrication between bearing and crankshaft
blade. using PIN 420 876 620 tool.
MAG side (except engines nos 3181 891 to
3181 920, and 3181 938 and up)
At bearing installation. provide a free play of 1 mm
(.040") for lubrication between bearing and crankshaft
blade. using PIN 420876625 tool.
(503 ENGINE TYPE). PAGE 5