2005 Ski-Doo Tundra, Skandic, Expedition Shop Manual, Page 226Get this manual
Section 04 ENGINE (4-TEC) Subsection 04 (LUBRICATION SYSTEM)
Check sieves for cracks or other damageNOTE: Replace sieves if damaged
NOTE: If the engine has to be disassembled within the scope of repair work, take this opportunity to clean the reed valve, using rag
Installation
NOTE: During assembly always replace both O-rings no40 and no41CAUTION: Take particular care with oil sieve no42 to ensure that it is re-installed in exactly the same position
Inspection
Check reed valve for cracks or other damageNOTE: Replace reed valve if damaged
Installation
At installation, replace the rubber gasket of the reed valveNOTE: Slightly grease the rubber gasket with Molykote 111 (PN 413 707 000)This will ease assembly and prevent displacement of the gasket during installation