Don't know if you replaced the water and oil seal during the project or not but when I did mine one of the seals (and I forget which one) was significantly larger than the original. It lifted the internals upwards ever so slightly. This prevented me from getting a proper seal. I ended up needing to put in an extra (4 total) gasket to form a proper seal. Not sure if this will help, but it sorted mine out. Have a great trip. Watching the Tour de France is as close as I get to the Alps.