Technical Engine noise please help

[Baldyham]

Hi all

I've rebuilt the engine so had the head skimmed new gaskets the lot but I now have it running and it sounds like this can anybody have a clue what it could be? Timing is perfect

 

[The Panda Nut]

Not familiar with th specific engine, but agree it doesnt sound quite right. Does it have hydraulic valve lifters. It sounds a bit like one is not right. could you have left a shim out resulting in a valve clearance issue? It doesnt sound like a big thing and I hope Im right about that at least.. Good luck. Im sure someone here will assist shortly.