Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1122 Flywheel
B36 ENGINE (COOPER BASE):
| Type | Thread | Tightening specifications | Dimension | |
|---|---|---|---|---|
| 1AZ Hexagon bolts Flywheel to crankshaft | B32, B36, B38 | M12 Replace screws. Joining torque and tightening torque must be observed without fail. |
1. Tightening torque 2. Angle of rotation |
45 Nm 45° |
B46 AND B48 ENGINES (COOPER S AND JCW):
| Type | Thread | Tightening specifications | Dimension | |
|---|---|---|---|---|
| 1AZ Hexagon bolts Flywheel to crankshaft |
B42, B46, B48 | M12x1.5 Replace screws. Joining torque and tightening torque must be observed without fail. |
Tightening torque Angle of rotation |
45 Nm 45° |
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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