I have a problem with astra h.1.6 engine.model is 2006.the problem is when I start it makes sound that I thought is timing belt went to the shop bought the kit and realised later it users chain with is fine and noticed they was oil very dry on the top tappets cover which we tried to clean but the car still makes noise when we start but not as much as before the cleaning. How do I clean it so that it picks up oil to the top and stop making sounds.soon after the oil has managed to go up the sound stops when the car is idling.
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