Spark Plug Replace Opel Antara I

Spark Plug Replace

Remove

1. Disconnect the negative battery cable.
2. Remove the engine dress cover. Refer to Engine Dress Cover Replace .
3. Remove the ignition coil retaining bolts (1) and remove the ignition coils (2). Refer to Ignition Coil Replace .

Important: Allow the engine to cool (to at least 50 °C) before attempting to remove spark plugs. Attempting to remove spark plugs from a hot engine may cause the plug / cylinder head threads to bind, resulting in tearing of the alloy cylinder head threads.

4. Using a suitable spark plug socket, loosen the spark plug slightly and then re-tighten to break away any carbon deposits on the threads.
5. Loosen the spark plug once again one or two turns, then use compressed air to remove any foreign material that may otherwise enter the combustion chamber.

6. Remove the spark plug (1).
7. Repeat as required for the remaining spark plugs.

Note:

Place each spark plug in the same order as that of removal. This will enable any abnormal spark plug condition to be identified with the cylinder.

If the spark plugs are removed for an indefinite period before installation, plug the spark plug openings to prevent foreign particle ingress.

8. Use a feeler gauge to check the spark plug gap. If the gap is not within specifications, replace the spark plug.

Important: Under no circumstances should the spark plug/s gap be adjusted. If the gap is not within specifications, replace the spark plug.

9. Inspect the spark plugs if required. Refer to General Specifications .

Install

Note: Do not use anti-seize compound or similar lubricant on the spark plug threads.

1. Using a suitably sized rubber tube attached to the spark plug terminal post, hands start each spark plug into the cylinder head thread.

Important: Failure to tighten a spark plug to the correct torque specification may result in premature spark plug failure, and / or engine damage.

Tighten

Tighten the spark plug to 18 N•m (13 lb-ft).