1991 Johnson Evinrude EI 60 Loop V Models 150, 175 outboards Service Manual, Page 136Get this manual
6Thoroughly wash entire cylinder block and crankcase with warm, soapy water to remove all traces of contaminants7Air dry cylinder block and crankcaseBlow all holes and passageways with compressed air ill
To avoid person injury, wear eye protection and set compressed air pressure at less that 25 psi (172 kPa)
8Cover the cylinder walls with liberal amount of Johnson or Evinrude Outboard Lubricant to protect them from corrosionInspection
1Before any inspection process can begin, all internal components must be clean and free of excess oil2Make visual inspection of all internal componentsCheck for unusual wear patterns, scuffing or deterioration of aluminum parts, heCilt-related discoloration of bearings and bearing surfaces, and broken components