Review on Twilight Automatic Tensioner 16620 0W093 Chevrolet by Jeff Addison

The tensioner almost failed to compress when installing the belt, resulting in excessive stress on the tensioner bolt and eventual bolt failure. I had to haul and use an angle drill and screw extractor to remove the threaded portion of the screw that was still in my engine block. It wasn't a good deal after all the trouble it caused. I was able to confirm that the real piston that is supposed to be compressing got stuck after I fixed everything.