Mercury 35/40HP 2 Cylinder Outboards Service Manual PN 90-42794--1, Page 358Get this manual

Mercury 35/40HP 2 Cylinder Outboards Service Manual PN 90-42794--1, Page 358

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Oil Pump Outlet Check Valve Installation 1 Install check valves (a)NOTE: a-rings on check valves are not replaceableIf a-rings show signs of deterioration such as swelling, cracking or discoloration,