1990 Johnson Evinrude "ES" Electric Trollers Service Manual, P/N 507869, Page 80Get this manual
Motor Tube Replacement Removal 1Remove steering housing as described in Section 2Secure motor tube in vee-jaw viseProtect the motor tube while clamping
[I] 3Remove adapter set screwt=J l
4Using propane torch, apply heat to the threaded area to soften thread locking compoundTo avoid injury, use insulated 'gloves when handling warm adapter housing