Tapping worse than a 6

[rocker8742]

First encounter with an xud (1.9 nad) and its already had an issue lol when it's running there's a hell of a tapping noise that speeds up with revs

It was running fine parked up and came back to it bout 10 minutes later and noticed it then

Had a look under the bonnet it's got plenty of oil, if anything maybe too much (it's over the max)

Doesn't sound to me like its bottom end but I may be wrong sounds towards the top around the fuel pump/drivers side injectors but I can't be sure

Found this on YouTube which sounds exactly the same but afaik mine isn't smoking at all
http://youtu.be/oOd1kT0H7uQ

Anyone shed any light on it? It's only done about 35 miles before this started

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Engine is on 123k I think