About the Engine
The 2006 Scion tC is equipped with a 2.4-liter inline-4 engine. This engine, known for its reliability and performance, is capable of producing 160 horsepower and 163 lb-ft of torque. The engine features an aluminum block and cylinder head, dual overhead camshafts, and variable valve timing. It is designed to deliver a balance of power and fuel efficiency, making it a popular choice among car enthusiasts.
2006 Scion tC Head Bolt Torque Specs
To ensure proper installation and sealing of the cylinder head, it is crucial to torque the head bolts to the manufacturer’s specifications. Here are the head bolt torque specs for the 2006 Scion tC:
| Head Bolt | Torque Specification (ft. lbs.) | Torque Specification (Nm) |
|---|---|---|
| 1-10 | 29 | 39 |
| 11-14 | 14 | 19 |
Procedure for Torquing Head Bolts
To torque the head bolts on your 2006 Scion tC, follow these steps:
1. Start by ensuring that the cylinder head and engine block surfaces are clean and free from debris or oil.
2. Apply a small amount of engine oil to the threads and underside of the head bolt washers.
3. Begin by tightening all head bolts to 22 ft. lbs. (30 Nm) in the numerical order shown in the service manual.
4. Once all bolts have been initially tightened, go back and torque them to the final specification using the following sequence:
– Head bolts 1-10: Torque to 29 ft. lbs. (39 Nm)
– Head bolts 11-14: Torque to 14 ft. lbs. (19 Nm)
5. After torquing all head bolts, perform an additional 90-degree clockwise rotation on each bolt in the same numerical order.
6. Finally, perform a second 90-degree clockwise rotation on each bolt in the same numerical order.
7. Double-check that all head bolts are properly torqued and secure.
By following these torque specifications and steps, you can ensure the proper installation of the cylinder head on your 2006 Scion tC’s engine. It is important to note that torque specifications may vary for different engine models or modifications, so always consult the specific service manual for your vehicle to ensure accuracy.
Remember, proper torqueing of head bolts is crucial for maintaining the integrity and performance of your engine.