1992 Johnson Evinrude "EN" 40 thru 55 Service Manual, P/N 508143, Page 345Get this manual
[3!] 22Install new motor a-ring22 23Position the motor on the manifold and install the four screws and lock washersTighten the screws to 35-52 inIbs(4-6 Nm)23 24Oil and place the pump control piston in the manifold241 25Oil and install the components of the down check valve1251 26Torque the down check valve housing to 50-60 inIbs(6-7 Nm) 6 27Oil and install and components of the up check valve