BOMBARDIER 1982 Shop Manual page 78

SECTION 02 ENGINE
SUB-SECTION 04 (454 ENGINE TYPE)
CLEANING
Discard all oil seals, gaskets, "0" rings and sealing
rings.
Clean all metal components in a non-ferrous metal clean-
er. Remove old "Loctite" from crankcase mating sur-
faces with Bombardier sealant stripper.
_ CAUTION: Never use a sharp object to scrape
. " away old sealant as score marks incurred are
detrimental to crankcase sealing.
DISASSEMBL Y
General
To remove drive pulley, refer to "Drive Pulley", section
03, sub-section 03.
To remove magneto, refer to "Magneto" in this section .
@)
@@To remove bearings from crankshaft use a pro-
tective cap and special puller as illustrated.
Special puller
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 . NA
.08 mm
deflection
(,0032")
Connecting rod big .40 mm .73 mm 1.2 mm
end axial play (,0157")
(,0287")
(,0468")
Connecting rod
N.A .
NA N.A.
alignment
O
NOTE: For the measurement procedures, refer to
"Engine Tolerances Measurement", section 02,
sub-section 09 .
PAGE 78
_ l _
ASSEMBLY
®
Prior to installation, place bearings into an oil con-
tainer previously heated to 100 D C (210 D F). This will ex-
pand bearing and ease installation. Install bearings with
groove as per the following illustration.
®
At seal assembly, apply a light coat of lithium grease
on seal lips.
For bearing lubrication purpose, a gap of 1.0 mm
1.040") must be maintained between seals and bear-
ings.
When installing plain seals (seal without locating ring or
without spacing legs), ensure to maintain the specified
gap as illustrated.
CD 0
G)
Crankcase halves are factory matched and there-
tore, are not interchangeable or available as single
halves. Prior to joining of crankcase halves, apply a light
coat of "Loctite 515" (413702700) on mating surfaces
.
_ CAUTION: Before joining of crankcase halves be
. " sure that crankshaft rotary valve gear is well en-
gaged with rotary valve shaft gear.
)