1978 Johnson 175, 200, 235 HP Outboard Service Manual, Page 183Get this manual
MOTOR AND PUMP To remove trim motor, remove three screws on motor flange and lift motor offRemove O-ring and oil pump filterSee Figure 9-18Pump assembly is removed by removing three pump screwsAssembly can then be lifted outSee Figure 9-19Trim down pump relief valve under pump assembly and can be lifted out TRIM CYLINDERS To disassemble trim cylinders, use an adjustable spanner and unscrew end capSee Figure 9-20Trim piston assembly can be lifted outSee Figure 9-21The sleeve fits snugly and hook must be used beneath it to pull the sleeve outA screwdriver with the tip bent at 90 makes good tool for thisThe procedure is the same for both trim cylinders1"0" ring 2Pump filter 3Pump screws (3)