Mercury 225 EFI Service Manual page 559

RIGHT HAND NON-RATCHETING
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.
2-4-C Marine Lubricant With Teflon
95
a -
b -
4. Install the 2 water pump locating pins through the gaskets and face plate.
5. Apply a light coat of 2-4-C Marine Lubricant with Teflon to the inside of the pump cover.
Position the water pump body over the drive shaft and water pump locating pins. Ro-
tate the drive shaft in a clockwise direction, while pushing down on the water pump
body to ease the water pump over the impeller blades.
95 2-4-C Marine Lubricant With Teflon
a -
b -
c -
Page 6A-68
a
95
Water Pump Impeller
Water Pump Impeller Key
c
95
Water Pump Body
Water Pump Alignment Pins (91-821571A1)
Drive Shaft (turn clockwise while installing water pump body)
b
b
a
90-884294 OCTOBER 2001
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