Okay, so you're saying that the right hose would probably just fit around the thinner pipe and be flush with the larger ring?
Thanks. Seems like it's time to buy another radiator hose again :L But first I will measure the exact diameter of the radiator pipe. Do you reckon that the way the big hose was attached before, with its sharp curve and thinner area, was a perfect formula for the hose to come off? In case the big hose was clamped to the larger ring, in my eyes some of the pressure would be pressing into the area between the smaller rad. neck and the big hose, causing even more trouble in that location.Bob pointed out something very important and thats if the diameter of the hose is to big(ment for the larger portion of the neck) it wont work on the thinner section of the neck. the hose has to fit snoggle on the neck.