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How do you tell if your car has a dual or single overhead camshaft?

To determine whether your car has a single overhead camshaft (SOHC) or a dual overhead camshaft (DOHC), here are a few methods you can use:

1. Engine Specifications:

- Refer to your car's owner's manual or technical specifications to find information about the engine. It should specify whether the engine has SOHC or DOHC.

2. Observation:

- Open your car's hood and inspect the engine. If there is a single camshaft located at the top of the cylinder head, it's a SOHC engine. If there are two camshafts on the cylinder head, one for each cylinder bank, it's a DOHC engine.

3. Timing Belt/Chain Cover:

- Locate the timing belt or timing chain cover on your engine. If the cover is flat, it usually indicates a SOHC engine, while a raised or bulging cover is often a sign of a DOHC engine.

4. Engine Oil Cap:

- Check the location of your car's engine oil cap. In a SOHC engine, the oil cap is usually positioned near the center of the cylinder head, while in a DOHC engine, the oil cap may be closer to the front of the engine.

5. Consulting Experts:

- If you're not confident in identifying the camshaft type, you can reach out to a mechanic, automotive specialist, or dealership that is familiar with your car model and engine. They can confirm the type of camshaft your vehicle has.

Remember, different manufacturers may have their own variations, so if you are not sure, it's best to refer to reliable sources of information specific to your vehicle.