2005 Ski-Doo Tundra, Skandic, Expedition Shop Manual, Page 262Get this manual
Section 04 ENGINE (4-TEC) Subsection 06 (CRANKSHAFTDRIVE GEARS)
RINGPISTON GROOVE CLEARANCE MM (IN) NEW MINIMUM UPPER COMPRESSION RING (rectangular) LOWER COMPRESSION RING (taper-face) OIL SCRAPER RING 0.025 mm (.001 in) 0.015 mm (.0006 in) 0.020 mm (.0008 in)
Ring End Gap
RING END GAP NEW MINIMUM UPPER COMPRESSION RING (rectangular) LOWER COMPRESSION RING (taper-face) OIL SCRAPER RING 0.30 mm (.012 in) 0.35 mm (.014 in) 0.35 mm (.014 in)
NEW MAXIMUM UPPER COMPRESSION RING (rectangular) LOWER COMPRESSION RING (taper-face) OIL SCRAPER RING 0.070 mm (.0028 in) 0.060 mm (.0024 in) 0.055 mm (.0021 in)
NEW MAXIMUM UPPER COMPRESSION RING (rectangular) LOWER COMPRESSION RING (taper-face) OIL SCRAPER RING 0.50 mm (.020 in) 0.55 mm (.022 in) 0.50 mm (.020 in)
SERVICE LIMIT ALL 0.15 mm (.006 in)