Oil Pressure Check; Oil Pump Inspection - TOHATSU BFT75A Service Manual

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LUBRICATION SYSTEM

OIL PRESSURE CHECK

Remove the oil filter (page 3-5).
Check the condition of the O-ring [1] of the special tool
and install it to the oil filter flange [2].
Tighten the special tool to the specified torque.
TOOL:
Oil pressure gauge
attachment [3]
TORQUE:
Install and tighten the adapter to the specified torque.
TOOL:
OIL PRESSURE GAUGE
ADAPTER, SUNAT 77AH [4]
TORQUE:
Install the pressure gauge [5] to the oil pressure gauge
adapter.
TOOL:
OIL PRESSURE GAUGE
SUNMT37A
Install the oil filter (page 3-5).
Check the engine oil level (page 3-4).
Remove the propeller (page 16-3).
Run the outboard in a test tank.
Allow the engine to warm up to normal operating
temperature, and then measure the oil pressure.
OIL PRESSURE (Pressure check at 750 ± 50 min
(rpm) in neutral:)
117 kPa (1.2 kgf/cm
If the oil pressure is lower than the specified value,
inspect the oil pump rotor and body for wear (page 12-
10).
Remove the special tools.
Install the oil filter (page 3-5).

OIL PUMP INSPECTION

OIL PUMP BODY I.D.
Measure the oil pump body I.D.
STANDARD:
80.00 – 80.04 mm (3.150 – 3.151 in)
If the measurement exceeds the standard limit, replace
the oil pump body.
12-10
070MJ-0010101
12 N·m (1.2 kgf·m, 9 lbf·ft)
Commercially
available
8.3 N·m (0.85 kgf·m, 6.1 lbf·ft)
Commercially
available
2 , 17 psi) or higher
[5]
[2]
[4]
-1
[1]
[3]