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Astra J
Engine > Engine mechanics - 1.6L (LDE, LLU), 1.8L (2H0) > Repair Instructions > Cylinder
Head Replacement - 1.6L LDE, LXV, and 1.8L 2H0,LUW,LFH
Cylinder Head Replacement (1.6L LDE, LXV, and 1.8L 2H0,LUW,LFH)
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Removal Procedure
1. Remove the intake manifold. Refer to Intake Manifold Replacement .
2. Remove the exhaust manifold. Refer to Exhaust Manifold Replacement .
3. Remove the camshaft cover. Refer to Camshaft Cover Replacement .
Other Vauxhall Workshop Manuals 4. Remove the timing belt tensioner. Refer to Timing Belt Tensioner Replacement .
Other Makes 5. Remove the 2 camshaft position sensor. Refer to Camshaft Position Sensor Replacement .
6. Remove the 2 camshaft position actuator solenoid valve. Refer to Camshaft Position Actuator Solenoid Valve
Replacement .
Astra J Workshop Manual 7. Remove the 2 camshaft position actuator adjuster. Refer to Camshaft Position Actuator Adjuster Removal .
Preface 8. Remove the timing belt rear cover. Refer to Timing Belt Rear Cover Removal .
General Information 9. Remove engine coolant thermostat housing. Refer to Engine Coolant Thermostat Replacement .
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Engine control and fuel system - 1.6L
(LDE, LLU), 1.8L (2H0)
Engine control and fuel system - 2.0L
Diesel (LCD, LBS, LBX, LBY)
Engine mechanics - 1.6L (LDE,
LLU), 1.8L (2H0)
Repair Instructions
Crankshaft and Bearing Installation
Camshaft Cover Replacement - 1.6L
LDE, LXV, 1.8L 2H0, LUW and LFH
Camshaft Replacement - 1 6L LDE
10. Loosen the 10 cylinder head bolts in sequence as shown.
10.1 Loosen the 10 bolts 90° .
10.2 Loosen the 10 bolts 180° .
11. Remove the 10 cylinder head bolts (1).
12. Remove and DISCARD the cylinder head (2).
13. Remove and Discard the cylinder head gasket (3).
Installation Procedure
1. Clean the sealing surfaces.
2. Inspect for plane surface.
• Cylinder block, cylinder head
• Straight-edge, feeler gauge
3. Install a NEW cylinder head gasket (3).
4. Install the cylinder head (2).
Caution: Refer to Fastener Caution .
Caution: Refer to Torque-to-Yield Fastener Caution .
Note: Note the correct tightening sequence.
5. Install 10 NEW cylinder head bolts (1).
6. Tighten the bolts in 5 passes, using the sensor kit :
• First pass to 25 N·m (18 lb ft)
• Second pass to 90°
• Third pass to 90°
• Fourth pass to 90°
• Fifth pass to 45°
7. Install engine coolant thermostat housing. Refer to Engine Coolant Thermostat Replacement .
8. Install the timing belt rear cover. Refer to Timing Belt Rear Cover Installation .
9. Install the camshaft position actuator adjuster. Refer to Camshaft Position Actuator Adjuster Installation .
10. Install the camshaft position actuator solenoid valve. Refer to Camshaft Position Actuator Solenoid Valve
Replacement .
11. Install the 2 camshaft position sensor. Refer to Camshaft Position Sensor Replacement .
12. Install the timing belt tensioner. Refer to Timing Belt Tensioner Replacement .
13. Install the camshaft cover. Refer to Camshaft Cover Replacement .
14. Install the exhaust manifold. Refer to Exhaust Manifold Replacement .
15. Install the intake manifold. Refer to Intake Manifold Replacement .
16. Fill the cooling system. Refer to Cooling System Draining and Filling .
17. Check and correct the engine oil.
Engine > Engine mechanics - 1.6L (LDE, LLU), 1.8L (2H0) > Repair Instructions > Cylinder
Head Replacement - 1.6L LDE, LXV, and 1.8L 2H0,LUW,LFH
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