Tools and Materials Needed:
- Socket wrench set
- Screwdrivers
- Pliers
- Gasket scraper
- New cylinder head gasket
- Cylinder head bolts
- Engine coolant
Step-by-Step Process:
1. Preparations:
- Disconnect the negative terminal of the battery to prevent electrical issues.
- Drain the engine coolant from the radiator and the engine block.
2. Remove Intake Manifold:
- Loosen and remove the bolts securing the intake manifold.
- Disconnect the fuel injector connectors and remove the manifold.
3. Remove Exhaust Manifold:
- Remove the nuts or bolts holding the exhaust manifold to the cylinder head.
- Detach the oxygen sensor and remove the exhaust manifold.
4. Remove Valve Cover:
- Remove the valve cover bolts and carefully lift off the valve cover.
5. Mark Camshaft and Timing Chain:
- Align the timing marks on the camshaft sprocket and the crankshaft sprocket.
- Use a marker to create reference marks on the timing chain and the sprockets.
6. Remove Timing Belt/Chain:
- Loosen the tensioner and remove the timing belt or chain.
7. Remove Cylinder Head Bolts:
- In the correct sequence, loosen and remove the cylinder head bolts.
8. Remove Cylinder Head:
- Gently pry the cylinder head off the engine block, using a pry bar if necessary.
- Be careful not to damage the gasket surface.
9. Clean Mating Surfaces:
- Thoroughly clean the mating surfaces of the cylinder head and the engine block, removing any old gasket material.
10. Install Cylinder Head Gasket:
- Position the new cylinder head gasket on the cylinder block, ensuring it aligns properly.
11. Install Cylinder Head:
- Lower the cylinder head carefully onto the engine block.
- Hand-tighten the cylinder head bolts in the correct sequence.
12. Tighten Cylinder Head Bolts:
- Use a torque wrench to tighten the cylinder head bolts as per the recommended specifications.
- Follow the specific tightening pattern and sequence provided in the vehicle's service manual.
13. Reinstall Timing Belt/Chain:
- Reinstall the timing belt or chain, ensuring proper alignment with the timing marks.
14. Reinstall Valve Cover:
- Reinstall the valve cover and secure it with the valve cover bolts.
15. Reinstall Manifolds:
- Reinstall the intake manifold and exhaust manifold.
- Connect the fuel injector connectors and oxygen sensor.
16. Refill Engine Coolant:
- Refill the engine coolant into the radiator and the engine block.
17. Reconnect Battery:
- Reconnect the negative terminal of the battery.
18. Test Engine:
- Start the engine and check for proper operation.
- Monitor the engine temperature and ensure there are no leaks.
Note: The above steps are general guidelines and may vary slightly based on the specific Daewoo Matiz model and year. It's recommended to refer to the vehicle's service manual for exact instructions and specifications for your specific vehicle.
