Water Pump Installation; Liner Installation - Mercury 25 EFI Service Manual

Jet Drive Outboard

Water Pump Installation

IMPORTANT: It is recommended that the impeller be replaced regardless of appearance. If the impeller must be reused, it
must be installed in the direction of original rotation. Installing the impeller with the vanes reversed from the previous set will
result in vane breakage shortly after unit is returned to service.
1. Lubricate the inside of the pump liner housing with 2‑4‑C with PTFE.
2. Reassemble the water pump, as shown. Rotate the driveshaft clockwise while pressing the water pump housing down over
the impeller.
3. Fasten the water pump to the jet drive with four screws. Tighten the screws to the specified torque.
Tube Ref No.
2-4-C with PTFE
95
Description
Water pump cover screws

Liner Installation

1. Locate the holes in the liner with holes in the water intake housing.
Page 9A-16
a
k
Description
© 2016 Mercury Marine
b
a - Bolt and flat washer (4)
b - Seal
c - Water pump housing
c
d - Pump liner housing
e - Impeller
f - Key
d
g - Gasket
h - Water pump guide plate
e
i - Gasket
j - Base
f
k - Dowel pin
g
h
i
j
k
25742
Where Used
Inside pump liner housing
Nm
90-8M0105568 eng MARCH 2016
Part No.
92-802859A 1
lb. in. lb. ft.
6 53