1990 Johnson Evinrude "ES" Colt/Junior thru 8 Service Manual, P/N 507870, Page 185Get this manual
Cleaning and Inspection 1Inspect clamp screw assemblyReplace swivel plate and retainer if bent or looseTo install new swivel pfate remove screw and old plateApply OMC Locquic Primer to the threads of the screw and allow it to dry four to five minutesThen apply OMC Ultra Lock to threads Install new swivel plate with screw and tighten securely2Clean all parts with parts cleaning solvent and dry with compressed airAll nut and screw threads coated with OMC Screw Lock or OMC Nut Lock must be thoroughly cleaned before reassemblyWhen using an OMC thread locking product, be sure to prime the adhesion surfaces with OMC Locquic Primer3Discard all oil seals, O-rings, and gaskets4Examine the rubber motor mounts and replace if deteriorated or damaged5Inspect components for nicks on the machined surfacesRemove nicks and resurface faces on surface plate Start with No120 emery cloth and finish with No180 emery cloth