I am trying to replace the tensioner on my truck but am having problems. One of the problems is the spring in the spring tensioner keeps popping off whenever i try to assemble the thing. Any tricks to resolving this? P.S. if you need to know the brand of the tensioner its, dayco "No slack" automatic belt tensioner. Don't know if that helps. I have the original one removed, its the new one I'm having problems with with installing it.