1992 Johnson Evinrude "EN" 9.9 thru 30 Service Manual, P/N 508142, Page 164Get this manual
20Thoroughly clean and degrease the crankcase mating flange of the cylinder block with OMC Cleaning Solvent and let air dry21Apply Locquic Primer to the mating flange of the crankcase and let air dry 1431 22 Apply Gel-Seal Ito the cylinder block flangeThe application must cover the flange evenly and consistently without being excessiveThe application must not come within V4 in(6,4 mm) of the labyrinth seals or bearings
Gel-Seal I has shelf life of at least one year when stored at room temperatureTest the Gel-Seal I or replace it if the age of the tube can not be determined Using old Gel-Sealllcouid cause crankcase air leaks23Lower the crankcase into place[";;l
24Lightly coat threads of the two center and two bottom