it must have been an airlock. i scrupulously followed the instructions found somewhere on the forum, worked like a charm.
back to my engine number, aidan, i can't seem to find any number anywhere around the breather tower (at least without dismantling bits and pieces). i took a picture, wonder if that would help?
(picture here: https://ibb.co/9VXBqQG)
(of course, as usual, any constructive comments inspired by the picture are most welcome).
enjoy the summer (apparently it was yesterday afternoon, here in belgium)
