You are a plumber, not a mechanic, so don't work on your own car! This looks like a stupid idea that no one should do, even a professional plumber. We are sorry for the mechanic that will have to deal with that.
This hack wasn't gonna work from the start. We think that the picture of it is cool, though, but it's actually a very bad idea. Just go to the mechanic and he will know what to do.