Humming noise

There is a humming noise comes from belt area.It comes after warm up.I replaced serpentine belt,belt tensioner,timing belt,timing belt tensioner pulley and other pulley but noise is there.Removed serpentine belt and ran the engine noise keep remaining.please help.I have freelander 1 2.0 diesel

You may like to read this, its also about an L Series...

https://www.landyzone.co.uk/land-rover/noise-from-timing-aux-belt-end-of-l-series-engine.273064/

Sounds like strange noises I had - but only I could hear. You'll see that the outcome was "I conclude that I must be going stark raving bonkers!".

You may obviously have an issue, maybe you can put a video up of it.