1997 Johnson Evinrude "EU" 40 thru 55 2-Cylinder Service Manual, P/N 507265, Page 332Get this manual
16Place the ball, valve guide, and spring of the down relief valve in cavity 17Install the manual release valve filter 18Oil and install two new pressure port a-rings
19Install the pump assemblyThe pump assembly must be drawn down evenlyTorque the screws to 25-30 inIbs(3-4 Nm)20Install the drive coupler21Install the filter