Yamaha F150B - Lower Unit (Counter Rotation Model); Bracket Unit; PTT Unit; Special Tightening Torque

1-20
Special tightening torque
0
1
2
3
4
5
6
7
8
9
10
A
Lower unit (counter rotation model)
Bracket unit
PTT unit
Part to be tightened Thread size
Tightening torques
N·m kgf·m ft·lb
Gear oil check screw — 9 0.9 6.6
Gear oil drain screw — 9 0.9 6.6
Lower case mounting bolt M10 47 4.7 34.7
Trim tab bolt M10 42 4.2 31.0
Propeller nut — 54 5.4 39.8
Cooling water inlet cover screw M5 5 0.5 3.7
Ring nut — 143 14.3 105.5
Pinion nut — 94 9.4 69.3
Part to be tightened Thread size
Tightening torques
N·m kgf·m ft·lb
Neutral switch screw M4 2.5 0.25 1.84
Shift cut switch screw M4 2.5 0.25 1.84
Shift bracket bolt — 19 1.9 14.0
Shift rod detent bolt — 18 1.8 13.3
Grease nipple — 1 0.1 0.7
Hose joint adapter screw ø6 3 0.3 2.2
Upper mounting nut — 72 7.2 53.1
Lower mounting nut — 72 7.2 53.1
Upper mount bracket bolt M10 54 5.4 39.8
Baffle plate screw M6 4 0.4 3.0
Oil pan assembly bolt
M8 20 2.0 14.8
M10 42 4.2 31.0
Engine oil drain bolt — 27 2.7 19.9
Oil strainer bolt M6 11 1.1 8.1
Oil pan bolt M8 20 2.0 14.8
Exhaust manifold bolt M8 20 2.0 14.8
Muffler bolt M8 20 2.0 14.8
Self-locking nut — 15 1.5 11.1
Grease nipple — 3 0.3 2.2
Trim stopper nut — 48 4.8 35.4
Part to be tightened Thread size
Tightening torques
N·m kgf·m ft·lb
Lower mounting shaft bolt M10 39 3.9 28.8
Reservoir mounting bolt M6 5 0.5 3.7
Reservoir cap — 0.7 0.07 0.5
PTT motor mounting bolt M6 5 0.5 3.7
Gear pump cover bolt M5 6 0.6 4.4
Gear pump housing mounting bolt M8 8 0.8 5.9