Mercury 35/40HP 2 Cylinder Outboards Service Manual PN 90-42794--1, Page 280Get this manual
9Secure reservoir to manifold using four screwsTorque screws to 70 lbin {7.7 Nm} Trim Rod Reassembly
1Install lubricated O-rings and rod wiper to end cap
10Install lubricated O-rings and "E" clip to manual release valve
aRod WiperInner a-ringOuterring
2Secure trim rod in soft jawed vice as shown3Slide end cap onto trim rod