Camshaft Position Actuator Assembly (Hma Engine) Replace Opel Antara I



Camshaft Position Actuator Assembly (HMA Engine) Replace

Identification Procedure

1. The engine number is stamped on the cylinder block under the NO.6 exhaust manifold of the engine. Confirm the engine number "10HMA XXXXX~".
2. If the engine number "10HMC XXXXX~" refer to Camshaft Position Actuator Assembly (HMC Engine) Replace

Tools Required EN.46105 Camshaft Locking Tool Set EN.46108 Timing Chain Retention Tool Set

EN.46111 Crankshaft Rotation Socket

Important : Setting the camshaft timing is required whenever the camshaft drive system is disturbed to ensure the relationship between any chain and sprocket is not lost. Even when only one sprocket is involved, multiple crankshaft rotations will not produce conditions where correct timing can be confirmed. If required, follow the bank 2 Secondary Camshaft Chain Components reinstallation procedure to reset the camshaft timing.

Remove

1. Remove the engine assembly. Refer to Engine Assembly Replace

Bank 1

1. Remove the bank 1 cylinder head cover. Refer to Camshaft Cover Replacement - Left Side .
2. Remove the camshaft position sensor. Refer to Camshaft Position (CMP) Sensor Replace .
3. Remove the camshaft position actuator solenoids. Refer to Camshaft Position Actuator Solenoid Replace .
4. Remove the crankshaft pulley. Refer to Crankshaft Balancer Replacement .
5. Install the crankshaft rotation socket Tool No. EN-46111 onto the crankshaft.
6. Rotate the crankshaft until the camshafts are in a neutral low tension position. The camshaft flats (1) will be parallel with the cylinder head cover rail (2).

7. Install Tool No. EN-46105 - 1 (1) onto the bank of the bank 1 cylinder head (3) camshafts (2).

Note: Use an open-end spanner (1) at the camshaft hex (2) to prevent camshaft/engine rotation. Disassemble the pump only to diagnose oil related concern. A disassembled oil pump must not be reused: it must be replaced.

Do not remove the camshaft position actuator bolt at this time.

8. Loosen the camshaft position actuator bolt.

Note: If you have already removed the camshaft timing chain, proceed to Step 12.

Note: Ensure the tips of Tool No. EN-46108 are fully engaged into the timing chain and the wing nuts are tight and the timing chain is taut.

9. Install Tool No. EN-46108 (1 and 2) to retain the timing chain (3 and 4).
10. Firmly tighten the wing nuts of Tool No. EN-46108.

Note: Ensure the camshaft timing chain and the camshaft position actuators are marked for correct reassembly.

11. Mark the timing chain and the respective location on both camshaft position actuators.

12. Remove the bolt (1) attaching the bank 1 exhaust camshaft position actuator (2) and remove the actuator.

13. Remove the bolt (1) attaching bank 1 intake camshaft position actuator (2) and remove the actuator.

Bank 2

Bank 2

1. Remove the bank 2 cylinder head cover. Refer to Camshaft Cover Replacement - Right Side .
2. Remove the camshaft position sensor. Refer to Camshaft Position (CMP) Sensor Replace .
3. Remove the camshaft position actuator solenoids. Refer to Camshaft Position Actuator Solenoid Replace .
4. Remove the crankshaft pulley. Refer to Crankshaft Balancer Replacement .
5. Install the crankshaft rotation socket Tool No. EN-46111 onto the crankshaft.
6. Rotate the crankshaft until the camshafts are in a neutral low tension position. The camshaft flats (1) will be parallel with the cylinder head cover rail (2).
7. Install Tool No. EN-46105 - 1 (1) onto the bank of the bank 2 cylinder head camshafts (2).

Note : Use an open-end spanner (1) at the camshaft hex (2) to prevent camshaft/engine rotation.

Do not remove the camshaft position actuator bolt at this time.

8. Loosen the camshaft position actuator bolt.

Note: If you have already removed the camshaft timing chain, proceed to Step 12.

Note: Ensure the tips of Tool No. EN-46108 are fully engaged into the timing chain and the wing nuts are tight and the timing chain is taut.

9. Install Tool No. EN-46108 (1 and 2) to retain the timing chain (3 and 4).
10. Firmly tighten the wing nuts of Tool No. EN-46108.

Note: Ensure the camshaft timing chain and the camshaft position actuators are marked for correct reassembly.

11. Mark the timing chain and the respective location on both camshaft position actuators.

12. Remove the bolt (1) attaching the bank 1 exhaust camshaft position actuator (2) and remove the actuator.

13. Remove the bolt (1) attaching bank 1 intake camshaft position actuator (2) and remove the actuator. Clean
14. Clean the exterior of each camshaft position actuator with solvent.
15. Dry the timing components with compressed air.

Inspect

1. Inspect the front of each camshaft position actuator for the following:

2. Inspect the back of each camshaft position actuator for the following:

Install

1. Installation should follow the removal procedure in the reverse order.
2. Align the actuators and timing chain with the marks made during removal.
3. Install the camshaft position actuators.

Tighten

Tighten the camshaft position actuator attaching bolts to 58 N•m (43 lb-ft).

4. Remove the timing chain retention tools.
5. Install the engine assembly. Refer to Engine Assembly Replace .