Mercury Force 9.9, 15HP Outboards Service Manual, Page 153Get this manual
EREASSEMBLING WATER PUMP NOTE: fwater pump kit (K 1031-1) is used, proceed to step 21Install plastic washer and drives haft seal in water pump with spri ng end up
Press in with seal installer (Special Tool NoFT-2907)Apply grease (Special Tool NoFT-2961on sealin li ps of driveshaft sealInstall impeller (rotate counterclockwise) into water pump body Slot (A) for impeller pin must be visible when viewed from bottom