Mercury FourStroke 2.5, Service Manual, Page: 22 / 205

Maintenance
90-8M0065421 NOVEMBER 2012 Page 1B-9
NOTE: Replace the sealing washers with new washers.
a - Vent plug
b - Fill/drain plug
Gearcase Lubricant Capacity
Gearcase lubricant capacity is approximately 180 ml (6.0 fl oz).
Checking Lubricant Level and Refilling Gearcase
1. Place the outboard in a vertical operating position.
2. Remove vent plug.
3. Remove fill/drain plug. Place lubricant tube into the fill hole and add lubricant until it appears at the vent hole.
a - Vent plug and new sealing washer
b - Vent hole
c - Fill/drain plug and new sealing washer
Tube Ref No. Description Where Used Part No.
82
Premium Gear Lubricant Gearcase 92-858058K01
4. Stop adding lubricant. Use new sealing washer and install the vent plug before removing the lubricant tube.
5. Remove lubricant tube and reinstall cleaned fill/drain plug and new sealing washer.
Lubrication Points
Lubricate the following with Quicksilver or Mercury Precision Lubricants 2‑4‑C with PTFE or Special Lubricant 101.
Tube Ref No. Description Where Used Part No.
95
2-4-C with PTFE
Steering friction knob threads, swivel bracket bushing, tilt
support pin, transom clamp screws
92-802859A 1
34
Special Lubricant 101
Steering friction knob threads, swivel bracket bushing, tilt
support pin, transom clamp screws
92-802865Q02
a
b
19077
b
a
c
19080