Hello everyone, I have a problem in the citroen xsara picasso 1.6 hdi 109 km 2005 I have been clogged with embarrassment for a long time there is this problem because I sealed the valve cover later I sealed the vacum pump because it also leaked on the gasket now the problem has returned and it is leaking again on the valve cover gasket I think that the problem is the seperator, maybe pneumothorax, is it possible to clean the washing, I do not know how and with what, I will have to unscrew the cover again, please help me if the seperator is not going to be cleaned and you will have to buy a new help valve cover?