got same problem, done head gasket and belt. now mil light on with cmp fault. just done son's car and checked timing. you need to wind crank round twice and recheck timing, guarantee cams are out of line. vct cam needs to be under tension then cam will move straight away. put cam in correct place then undo belt and wind crank to top dead centre or on timing pin. belt back on then wind round again. pain but should work. it all down to timing.