Engine breather problem

  1. #1
    Hi, I have a j4 vts that every time I take it for a drive the breather which goes into the side of the cylinder head pops out and there is oil everywhere.

    I've check all the breather pipes and there all clear also plumbed in a catch can but it still just blows off.

    Even tried bonding it in but no joy.

    any ideas ? Or tests I can do ?

    Many thanks.