TOHATSU BFT 250A, Service Manual

Page: 22 / 639

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SERVICE INFORMATION
GEAR CASE
EXTENSION/MOUNT
STERN BRACKET
POWER TRIM/TILT
Item
Thread Dia. and pitch Torque values
Remarks
mm (in) N·m kgf·m lbf·ft
Gear case bolt
(LA, XA and XCA types)
M10 x 1.25 37 3.8 27
Gear case self-lock nut
(XXA and XXCA types)
M10 x 1.25 37 3.8 27
Gear case self-lock nut M12 x 1.25 56 5.7 41
Gear case stud bolt M12 x 1.25 22 2.2 16
Pinion gear nut M18 x 1.0 196 20.0 145 Apply gear oil in to the
threads and seating
surface.
Gear oil check bolt M8 x 1.25 6.5 0.66 4.8
Bearing holder M110 x 2.0 230 23.5 170
Gear oil drain plug bolt M8 x 1.25 6.5 0.66 4.8
Impeller housing bolt/washer M8 x 1.25 20 2.0 15
Propeller castle nut
(Standard rotation type)
M18 x 1.5 – – – See page 16-6
Propeller castle nut
(Counter rotation type)
M18 x 1.5 – – – See page 17-5
68 mm lock nut M68 x 1.5 132 13.5 97 Apply gear oil in to the
threads and seating
surface.
Water screen screw M5 x 0.8 1.0 0.1 0.7
Item
Thread Dia. and pitch Torque values
Remarks
mm (in) N·m kgf·m lbf·ft
Drain plug cover special screw M6 x 1.0 6.4 0.65 4.7
Lower rubber mount nut M14 x 1.5 103 10.5 76
Upper rubber mount nut M12 x 1.25 83 8.5 61
Lower mounting cover screw/
washer M6 x 1.0 4.5 0.46 3.3
Gear case stud bolt
(LA, XA and XCA types)
M12 x 1.25 22 2.2 16
Extension separator stud bolt
(XXA and XXCA types)
M12 x 1.25 22 2.2 16
Extension separator stud bolt
(XXA and XXCA types)
M10 x 1.25 15 1.5 11
Item
Thread Dia. and pitch Torque values
Remarks
mm (in) N·m kgf·m lbf·ft
Stern bracket nut M25 x 2.0 34 3.5 25
Stern bracket nut (7/8-14UNF) 34 3.5 25
Thrust receiver nut M6 x 1.6 6.0 0.61 4.4
Item
Thread Dia. and pitch Torque values
Remarks
mm (in) N·m kgf·m lbf·ft
Manual valve – 3.4 0.35 2.5
Oil tank cap – 2.5 0.25 1.8
Socket bolt A and B (3/8 x 18) 8.3 0.85 6.1
Power tilt motor mounting bolt/
washer M6 x 1.25 4.9 0.50 3.6
Oil tank mounting bolt/washer M6 x 1.25 4.9 0.50 3.6
Power tilt motor wire holder screw – 1.4 0.14 1.0
Rod guide – 140 14.3 103
Cylinder cap – 208 21.2 153 Apply grease to the
threads.