1980 Ski-Doo Shop Manual, Page 237Get this manual
SECTION 05 SUB-SECTION 03, (DRIVE PULLEY)
To install or remove "Duralon" bushing from hub plug use suitable pusher and hammer or pressInstall bushing as per illustration
INSPECTIONCLEANING
Drive pulley should be inspected annuallyCheck general conditIOn of pulley and Inspect Duralon bushing faces, as per illustrations
Tellon coating
Teflon Impregnated
, CAUTION: Be careful when installing sliding half assembly on square shaft of drive pulley to avoid scratches on "Duralon" bushing caused by square shaft edgeTorque to 85 N'm (63 ft-Ibs)Apply Loctite 24r on threadsSome drive pulleys have an offset In the hub plugShouldered pin bushings with shoulder must be Installed In these hub plugsTeflon impregnated cloth WORN (must be changed)