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What are the torque setting for head studs of a Toyota corolla 2003 VVTI 1.4 engine?

The torque settings for the head studs of a 2003 Toyota Corolla VVTI 1.4 engine are as follows:

- First Step Torque: 29 ft-lb (40 Nm)

- Second Step Torque: 53 ft-lb (72 Nm)

- Final Torque: 67 ft-lb (91 Nm)

It's important to follow these torque specifications to ensure proper engine operation and prevent damage to the head studs or cylinder head. Always refer to the vehicle's service manual for precise and up-to-date torque specifications.