Engine banging noise
Had my 2.0 JTS Alfa for 6 months now, always check the oil and its topped up when needed.
Recently there has been a pretty serious sounding metal on metal banging noise that starts about 2500 rpm. I have had a proper listen to the top and bottom end of the engine and the noise is definitely coming from the top end. Needless to say i have stopped driving the car and already missing it!
With that in mind i had the cam cover off today and the cam lobes are definitely warn, the lobe near the variator is about 5mm different is size and almost looks squared off at the end. The valve buckets also show signs of damage so there is definitely contact happening there and im sure i need to replace the cams. This strikes me as a lack of oil sometime in the past, my concern though is that this is not the cause of the noise as i am confused as to why it has only just started now.
Any thoughts? Not sure what else to check before i start buying and changing expensive parts!