Head bolt set for BMW N13 Mini N12 N14 N16 N18 Peugeot EP6 1.6T 16v (For: Mini)
For MINI N12, N14, N16, and N18 engines (Prince series), the cylinder head bolts are of the Torque-to-Yield (TTY) type. Factory specifications mandate that for M10 cylinder head bolts, an E10 external Torx socket must be used, and the precise four-step tightening sequence must be strictly adhered to.
Description
Torque Specifications (M10 Bolts)
Please follow a spiral tightening sequence, working outward from the center of the cylinder head:
Step 1: Pre-tighten to 30 Nm (22 ft-lbs)
Step 2: Angle tighten to 90°
Step 3: Angle tighten to 90°
Step 4: Angle tighten to 90°
Additional M8 Bolts
In addition, there are several smaller M8 peripheral bolts (typically located near the timing chain) used to secure the cylinder head. These bolts typically require tightening to a torque of 28 Nm (21 ft-lbs).
