no this sound is not from crankshaft... that tapping it from hydraulic tappets, but few days later when I press gas pedal sounds like "chewing hard biscuits"... krkrkkshhsksh... and bad crankshaft cause not lubricate hydraulic tappets and camshaft... so i think all problems starts from crankshaft. it's possible to abrade it and put new bearing shells, piston rings... fuuuu... €€€€€... i think 400€ all this...
i will try to record that sound, this is something i never heard... and blue smoke is going out exhaust.
i was planing only to change variator but... i change cams because they were "roundshafts" not "camshafts" there were no "cams" on them... i will post some pictures.