Checking The Lower Unit For Air Leakage; Checking The Propeller; General; Checking The Anode - SELVA MARINE Blue Whale 250 EFI Service Manual

Recommended gear oil:
Hypoid gear oil
API: GL-4
SAE: 90
Gear oil quantity:
Regular rotation model:
3
1,150 cm
(38.9 US oz, 40.6 Imp oz)
Counter rotation model:
3
1,000 cm
(33.8 US oz, 35.3 Imp oz)
5. Install the new gaskets, check screw,
and quickly install the drain screw, and
then tighten them to the specified torque.
Gear oil check screw and drain
screw:
9 N·m (0.9 kgf·m, 6.6 ft·lb)
Checking the lower unit for air
leakage
1. Remove the check screw 1, and then
install the special service tool.
Leakage tester: 90890-06840
2. Apply the specified pressure to check
that the pressure is maintained in the
lower unit for at least 10 seconds.
CAUTION:
Do not over pressurize the lower unit, oth-
erwise the oil seals may be damaged.
6P23H11
Bracket unit / Lower unit / General
NOTE:
Cover the check hole with a rag when remov-
ing the tester from the lower unit.
Lower unit holding pressure:
70 kPa (0.7 kgf/cm
3. If the specified pressure cannot be main-
tained, check the drive shaft, propeller
shaft and shift rod oil seals for damage. If
necessary, check the each shaft for
bends and damage.

Checking the propeller

1. Check the propeller blades and splines.
Replace if cracked, damaged, or worn.

General

Checking the anode

1. Check the anodes and trim tab. Clean if
there are scales, grease, or oil.
1
2
, 10 psi)
2
3
4
3
5
6
7
8
S6P23310E
9
3-14