BOMBARDIER ELAN 3042 1985 Shop Manual page 297

Section 03 TRANSMISSION
Sub-section 05 (PULLEY DISTANCE & ALIGNMENT)
PULLEY DISTANCE
&
ALIGNMENT
GENERAL
The pulley distance we w ill refer to. in this sect1on . is the
space separating the drive and driven pulley outside dia-
meters !Z measurement) .
Th 1s basic distance is prov1ded as an assembly guide and
indicates the dimensions between which satisfactory belt
deflection w1ll be obtained.
Both pulley distance adJUStment and pulley alignment
must be carried out to ensure the highest eff1ciency of
the transmi ssion system. Furthermore, the h1gh drive belt
operation and mimmum wear will be obtained only with
proper pulley al1gnment.
+
WARNING:
Failure to correctly perform pulley align-
ment may cause the vehicle to creep forward at
idle.
The pulley distance refer to Z measurement
All pulley alignment specifications refer to:
x = Distance between stra1ght edge and drive pulley inner
half on dnven pulley side.
y= Distance between straight edge and drive pulley inner
half edge on the opposite side.
GENERAL PROCEDURE
Remove belt guard and drive belt .
By turning and push1ng the sliding pulley, open the driven
pulley. Insert a stra1ght edge 9 .5 mm (.375"1 square into
the driven pulley opened .
0
NOTE: Always measure distances x & y from the
further straight edge Side to the inner half edge on
the engine s1de.
A000003002
- . _ 9.5 mm IJ·a'"l siraoght edge
Length : 48 em (19 ml
··y··~-
On all models except Elan. the distan ce y must exceed
distance x to compensate for the twist due to the dr ive
pulley torque.
Drive belt deflection
0
NOTE: When pulley d1stance and alignment are ad-
justed to specifications. adjust drive belt deflection
<n
accordance with section 03 -02 .
After adjustment checks
~CAUTION:
This section deals mainly with adjust-
"f"
ment procedures. For complete assembly require-
ments, refer to the proper ENGINE or TRANSMISSION
installation section.
ELAN 250
•
D1ive pulley
movement
A002003009
+
Pulley distance specification
z=
44.45 mm
~ ~. · ~
(1
750" -::
g~gl
Driven pu ll ey
moveme nt
Pulley distance adjustment method
With the threaded rod and nut loca ted between chain-
case and frame, sh1ft chaincase to obtain the specified
distance.
Pulley alignment specification
x= 34.14 mm ± 0.76 11.344" ± 0 .031.
y might exceed x up to 1 5 mm ( 06"1
y might be smaller than x up to . 76 mm (.030")
03-05·1