4. Insert a gear oil tube or gear oil pump into
the drain hole and slowly fill the gear oil
until oil flows out of the check hole and no
air bubbles are visible.
Checking the lower unit for air leak-
age
cC
Do not over pressurize the lower unit, oth-
erwise the oil seals may be damaged.
1. Remove the check screw 1, and then
install the special service tool.
CHK
ADJ
3-9
6F65G11
Periodic checks and adjustments
2. Apply the specified pressure to check
that the pressure is maintained in the
lower unit for at least 10 seconds.
NOTE:
Cover the check hole with a rag when remov-
ing the special service tool from the lower
unit.
3. If pressure drops below specification,
check the drive shaft, propeller shaft oil
seals, shift rod, and drain screw for dam-
age.
Checking the propeller
1. Check the propeller blades and splines
for cracks, damage, or wear. Replace if
necessary.
General
Checking the anodes
1. Check the anodes and trim tab for scales,
grease, and oil. Clean if necessary.
å E40G
∫ E40J
cC
Do not oil, grease, or paint the anodes or
the trim tab, otherwise they will be inef-
fective.
Recommended gear oil:
Hypoid gear oil
API: GL-4
SAE: 90
Oil quantity:
315 cm
3
(10.65 US oz, 11.11 Imp oz)
Check and drain screw:
9 N·m (0.9 kgf·m, 6.6 ft·lb)
Leakage tester: 90890-06840
Lower unit holding pressure:
100 kPa (1.0 kgf/cm
2
, 14 psi)
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