Top metal pipe that comes out of the ird has started leaking just before the end of the rubber pipe. I am going to blank the rubber pipe ends or join them to create a loop , ending up with a non cooled ird unit. Quite a common practice apparently. I have a 150 mile journey to make next week, Is the ird likely to overheat, or will a 70mph wind flowing underneath be enough to keep it cool? There`s no undertray beneath the engine.