LOWER UNIT - 6-2790-826148R2 MARCH 1997
Gear Housing Pressure Test
1. Remove vent plug and install pressure test gauge.
Tighten securely.
2. Pressurize housing to 10-15 p.s.i. and observe gauge
for 5 minutes.
3. Rotate drive shaft, prop shaft and move shift rod while
housing is pressurized to check for leaks.
4. If pressure drop is noted immerse housing in water.
5. Re-pressurize to 10-15 p.s.i. and check for air
bubbles.
6. Replace leaking seals as necessary. Retest housing.
NOTE: It should hold 10-15 p.s.i. for 5 minutes.
7. Remove tester from housing and install vent plug.
Gear Housing Installation
Filling Gear Housing with Lubricant
NOTE: Gear housing lubricant capacity is approxi-
mately 14.9 fl. oz. (440 ml).
WARNING
If gear housing is installed on outboard, disconnect
(andisolate)spark plug leads fromsparkplugsbefore
working near the propeller.
CAUTION
Do not use automotive grease in the gear housing.
Use only Quicksilver Gear Lube.
1. Remove any gasket material from “Fill” and “Vent”
plugs and gear housing. Install new gaskets on “Fill”
and “Vent” plugs.
IMPORTANT: Never add lubricant without removing
“Vent” plug. Gear housing cannot be filled because of
trapped air. Fill gear housing when driveshaft is in a
vertical position.
2. Remove “Fill” plug and gasket.
3. Insert lubricant tube in “Fill” hole, then remove “Vent”
plug and gasket.
4. Fill until excess lubricant flows out of “Vent” hole.
5. Replace this “Vent” plug and gasket.
6. Install “Fill” plug and gasket.
a
a - “Vent” Plug
7. Torque “Fill” and “Vent” screws to 55 lb. in. (6.2
N·m).
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