About the Engine
The 2001 Chevy Cavalier is equipped with a 2.2-liter inline-four engine. This engine, commonly known as the GM 122 engine, is a reliable and efficient powerplant that delivers a balance of performance and fuel economy. The 2.2-liter engine features an overhead valve (OHV) design and is capable of producing around 115 horsepower. It is commonly found in compact cars like the Cavalier and offers a smooth and responsive driving experience.
Head Bolt Torque Specifications
To ensure proper installation and sealing of the cylinder head, it is crucial to tighten the head bolts to the correct torque specifications. Here are the recommended head bolt torque specs for the 2001 Chevy Cavalier:
| Step | Sequence | Torque (ft. lbs.) | Torque (Nm) |
|---|---|---|---|
| Step 1 | Tighten all bolts to 22 | 30 | 40 |
| Step 2 | Tighten all bolts to 37 | 50 | 68 |
| Step 3 | Rotate all bolts an additional 90 degrees | N/A | N/A |
Procedure:
Follow these steps to properly torque the head bolts on your 2001 Chevy Cavalier:
1. Start by ensuring that the cylinder head and engine block mating surfaces are clean and free from debris or old gasket material.
2. Begin tightening the head bolts in the specified sequence using a torque wrench. Use the torque values provided in the table above for each step.
3. For Step 1, tighten all bolts to 30 ft. lbs. (40 Nm) in the specified sequence.
4. Proceed to Step 2, tightening all bolts to 50 ft. lbs. (68 Nm) in the specified sequence.
5. Finally, for Step 3, rotate all bolts an additional 90 degrees in the specified sequence. This step is crucial for achieving the proper clamping force.
6. Double-check that all bolts have been torqued correctly and in the correct sequence.
7. You have successfully torqued the head bolts on your 2001 Chevy Cavalier.
It is important to note that torque specifications may vary depending on the specific engine variant or any modifications made. Always consult the vehicle’s service manual or a trusted source for accurate and up-to-date torque specifications.
By following the recommended torque specifications and proper tightening sequence, you can ensure a secure and leak-free seal between the cylinder head and engine block, promoting optimal engine performance and longevity.