9-19 LOWER UNIT
CHECKING PROPELLER SHAFT THRUST PLAY
See the “GEARS - SHIMMING AND ADJUSTMENT / CHECK-
ING PROPELLER SHAFT THRUST PLAY” section on page 9-
27.
LEAKAGE CHECK
To check for oil seal or o-ring leakage, use oil leakage tester.
Before leakage check, temporarily fasten the driveshaft bear-
ing housing to gearcase using two bolts and nuts (placed through
the two diagonally opposite gearcase mounting holes).
Apply the specified pressure through the oil level hole and ro-
tate the drive and propeller shafts.
If pressure does not fall, sealing performance is correct.
09950-69511 : Oil leakage tester
09821-00004 : Air pump
Leakage test pressure : 100 kPa (1.0 kg/cm
2
, 14.2 psi)
NOTE:
Apply low initial pressure of 0.2 – 0.4 kg / cm
2
, (2.8 – 5.7 psi)
first, then apply specified pressure.
B
Do not exceed pressure of 110 kPa (1.1kg/cm
2
, 15.6 psi)
or damage to oil seals will result.
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