1998 Mercury 9.9/15HP 4-stroke outboards factory service manual, Page 274Get this manual
NON BIGFOOT GEAR HOUSING
Water Pump Base and Shift Shaft Reassembly
1Apply Loctite 271 to O.Dof sealWith lip of seal facing DOWN, push seal into base using Mandrel (91-13655)
91-13655 53021
Loctite "271" (92-809819)
a-Seal (Lip FACES DOWN) b-Mandrel (91-13655) 2Apply Loctite 271 to O.Dof sealWith seal lip facing UP, push seal into base using Mandrel (91-13655)Apply 2-4-C wTeflon between lips of both seals7