Mercury 15XD - Water Pump

GEAR HOUSING
90-826883R2 JUNE 1998 Page 6A-35
Water Pump
1. Slide a new face plate gasket and face plate over driveshaft and position them on gear
housing.
2. Install nylon washer over driveshaft and set it flat against face plate.
3. Place impeller drive key on flat of driveshaft.
4. Slide new impeller over driveshaft. Align impeller keyway with drive key, then push im-
pelleroverdrivekeyandagainstfaceplate.Ifreusingimpeller(notrecommended)note
orientation of vane set.
5. Install nylon washer and set it flat against impeller.
6. InstallnewO-ringinwaterpumpcover.Installcoverassemblyoverdriveshaftanddown
against impeller.
a
b
c
a-Nylon Washer
b-Face Plate
c-Drive Key
7. While pushing down on water pump cover assembly, rotate driveshaft clockwise to
install impeller cover and seat cover against face plate.
8. Align mounting holes in gasket, face plate and water pump cover with mounting holes
ingear housing.Installfour (4)screwsapplying Loctite“271”and torque to60lb-in.(6.8
Nm).
9. Slide centrifugal slinger down drive shaft.
a
b
b
7
Loctite “271” (92-809819)
7
a-Centrifugal Slinger
b-Screws (4) Torque to 60 lb-in. (6.8 Nm).