BOMBARDIER 1983 Shop Manual page 97

CLEANING
Discard all seals, gaskets and "0" rings
Clean all metal components in a non-ferrous metal clean -
er.
Remove old sealant from crankcase mating surfaces with
Bombardier sea lant stripper.
_ CAUTION: Never use a sharp object to scrape
. . away old sealant as score marks incurred are de-
trimental to crankcase sealing.
DISASSEMBLY
General
To remove drive pulley, refer to "Drive Pul ley", section
03, sub-sect ion 03.
To remove magneto, refer to "Magneto" in this section .
@@To remove ball bea rings from crankshaft, use a
specia l pul ler (see Too ls).
P.T.O. side
INSPECTION
The inspection of the engine bottom end must include
the following measurements:
TOLERANCES
MEASUREMENTS FITTING NEW PARTS WEAR LIMIT
(MIN .) (MAX.)
Crankshaft
N.A. N.A.
.08 mm
deflection 10031")
Connecting rod big .20 mm .53 mm
1.0 mm
end axial play 10079") 10208") 10394")
Connecting rod
N.A. N.A. N.A.
alignment
O NOTE: For t he measurement proced ures , refe r to
"Eng in e Tolerances Measu rement", section 02
,
SUb-section 07 .
SECTION 02 ENGINE
SUB-SECTION 05 (503 ENGINE TYPE)
ASSEMBLY
@@Prior to installation, place bearings into an oil con-
tainer heated to lOODC (212 D F).
This wi ll expand bearings and ease insta llation. Insta ll
bearings with groove as per exp loded view
Bearings are pressed on crankshaft until they rest
against radius. These radius maintain the gap needed
for bearings lubrication .
@@At seal assembly, app ly a light coat of lithium
grease on seal lip.
For bearing lubrication purpose, a gap of 1.0 mm
(,040") must be maintained between seals and bearings.
When installing plain sea ls (seal without locating ring or
w ithout spacing legs), ensure to maintain the specified
gap as illustrated.
CD
0Crankcase ha lves are factory matched and there-
fore, are not interchangeable as single halves.
PAGE 97