1978 Ski-Doo Shop Manual, Page 348Get this manual
SECTION 08 SUB-SECTION 02-05
1978 PULLEY ALIGNMENT
Nominal distance between pulleys
38" square bar Length 48 cm (19 in
Dimension "X" must never exceed dimension "Y"Dimension "Y" can exceed dimension "X" by 1.6 mm (116"),
DIMENSIONS and (Offset) ELAN and SPIRIT OLYMPIQUE and NUVIK CITATION
NOMINAL DISTANCE (between pulleys)