Driven Pulley - BOMBARDIER 1980 Shop Manual

4
o
REMOVAL
Remove pulley guard, drive belt and muffler.
Slacken steering column bolts.
Release chain tension. Remove cotter pin and nut secu-
ring pulley drive shaft to chaincase.
O NOTE: Attach to frame to prevent it falling inside
of chaincase.
Pull driven pulley toward engine and remove from vehicle.
DISASSEMBLY
&
ASSEMBLY
01n order to measure driven pulley spring tension, pulley
halves must be separated. To do this, insert length of
ill
dia. rod between the halves. Check tension using
a fish scale positioned goo with pulley axle.
~
SECTION 05
SUB-SECTION 04 (DRIVEN PULLEY)
DRIVEN PULLEY
Elan and Spirit
1. Fixed half
2.
Sliding half
3.
Release spring
4. Outer cam
5. Cam slider shoe
6. Roll pin
Spring tension pre-load should be 3.6 kg (8 Ibs)
To correct spring tension, either relocate spring end in
sliding pulley half or gradually rotate outer cam.
INSTALLATION
With drive chain tension released, hold upper sprocket
and chain in position then insert assembled driven pulley
shaft through chaincase and sprocket.
Install spring washer and castellated nut.
Tighten castellated nut fully then back off nut 1 /6 of
a turn.
Lock in position with a new cotter
pin.
. . . CAUTION: It is important that nut is backed off
Y
or damage may occur due to a burnt or seized
bearing.
Apply chain tenSion.
Install muffler and lighten steering column bolts.
Install drive belt and pulley guard.
(DRIVEN PULLEY), PAGE 1