Mercury Mariner Outboard 225 3 Litre Service Manual 1994, Page 321Get this manual
IMPORTANT: If seal installed above pump housing is not at the proper height, air will be drawn into the pump resulting in overheating of the en-
Gear Lubricant Filling Instructions
12Inspect "Fi ll" and "Vent" O-rings for cuts or brasionsReplace -rings if necessaryClean any metal debris from magnet on "Fill" plug
gine10Using tool provided in seal kit (26-8 16575A2) or water pump kit (8 17275A3), press seal down over dri ve shaft (DO NOT GREASE DRIVE SHAFT) until tool seats against pump housing
IMPORTANT: Never apply lubricant to gear housing
without first removingVent" screw, or gear housing cannot be filled because of trapped airFill gear housing ONLY when housing is in vertical position