Mercury 225 EFI, Service Manual

Page: 661 / 719

LEFT HAND NON-RATCHETING
90-884294 OCTOBER 2001 Page 6B-97
Water Pump Assembly
Installation
NOTE: The gaskets/face plate hole pattern is not symmetrical. If the holes of the gaskets/
face plate do not align with the screw holes of the gear case and/or each other, one or
more of the parts is upside down. Determine which part(s) is (are) upside down and turn
the appropriate part(s) over.
1. Install the small hole gasket then the face plate followed by the large hole gasket onto
the gear case.
58011
a
b
c
a - Small Hole gasket
b - Face Plate
c - Large Hole Gasket (GRAY sealing ring faces up)
2. Place a small amount of 2-4-C Marine Lubricant with Teflon on the flat surface of the
impeller key and install the key onto the drive shaft keyway.
IMPORTANT: When using an impeller whose blades have taken a set, face the curl
of the blades in a counterclockwise direction. Do not install the impeller with its
blades oriented in a reversed direction from original rotation, or premature impeller
failure will occur.
3. Assemble the water pump impeller onto the drive shaft and down over the key.
57938
95 2-4-C Marine Lubricant with Teflon
95
a
b
a - Water Pump Impeller
b - Water Pump Impeller Key