1991 Johnson/Evinrude Models "EI" 40 thru 55 Service Manual, Page 327Get this manual
1sl 8Remove the four large motor flange retaining screwsRemove the motor and discard the O-ring
[!] 9Remove the filter10Remove the drive coupler from the pump assembly'111 11 Evenly loosen and remove the three Allen head cap screws that retain the pump assembly to the manifoldRemove the pump assembly
r=-J The pump assembly is not serviceableIf the pump assembly needs flushing, do not clean it in solventOnly clean the pump assembly in clear hydraulic fluid12 1