1ZZ FE Torque Specs

The Toyota 1ZZ-FE and 2ZZ-GE are 1.8L inline-4 engines from the ZZ family, known for their efficiency and performance. Accurate torque specifications are crucial for maintenance and rebuilding. Below is a comprehensive guide to the torque specs for these engines:

🔧 1ZZ-FE Engine Torque Specifications

Cylinder Head Bolts

Step 1: Tighten to 36 ft-lbf (49 Nm).
Step 2: Rotate an additional 90°.
Step 3: Rotate another 90°.

Crankshaft Main Bearing Cap Bolts

Step 1: Tighten to 22 Nm (16.2 ft-lbf).
Step 2: Tighten to 44 Nm (32.5 ft-lbf).
Step 3: Rotate all bolts 45°.
Step 4: Rotate all bolts another 45°. (engine-specs.net)

Connecting Rod Bolts

Step 1: Tighten to 20 Nm (14.8 ft-lbf).
Step 2: Rotate 90°. (GitLab)

Camshaft Timing Gear Bolt

Torque: 54 Nm (40 ft-lbf). (GitLab)

Camshaft Bearing Cap Bolts

Torque: 13 Nm (10 ft-lbf).

Chain Tensioner Bolts

Torque: 9 Nm (80 in-lbf). (GitLab)

⚙️ 2ZZ-GE Engine Torque Specifications

Cylinder Head Bolts

Step 1: Tighten to 36 ft-lbf (49 Nm).
Step 2: Rotate an additional 90°.
Step 3: Rotate another 90°.

Crankshaft Main Bearing Cap Bolts

Step 1: Tighten to 22 Nm (16.2 ft-lbf).
Step 2: Tighten to 44 Nm (32.5 ft-lbf).
Step 3: Rotate all bolts 45°.
Step 4: Rotate all bolts another 45°. (engine-specs.net)

Connecting Rod Bolts

Step 1: Tighten to 20 Nm (14.8 ft-lbf).
Step 2: Rotate 90°. (billswebspace.com)

Camshaft Timing Gear Bolt

Torque: 54 Nm (40 ft-lbf).

Camshaft Bearing Cap Bolts

Torque: 13 Nm (10 ft-lbf).

Chain Tensioner Bolts

Torque: 9 Nm (80 in-lbf). (GitLab)

📘 Additional Resources

For detailed procedures and diagrams, refer to the following resources:

Always use a calibrated torque wrench and follow the manufacturer’s recommended tightening sequences to ensure proper assembly and engine longevity.

If you need torque specifications for specific components or further assistance, feel free to ask!

1ZZ FE and 2ZZ GE Torque Specification PDF

1ZZ FE and 2ZZ GE Torque Specifications Download