Car wiring diagrams: Ford Escort Belt Diagram, wiring diagram, wire wiring harness, schematic circuit diagram, wiring diagran, wireing diagram, wirring diagram, wiring daigram, wiring diagrams. How to Replace a Ford Escort .L .L Timing Belt and Tensioner Replacement. These instructions are intended for individuals with beginner to novice . Video embedded This is the timing belt procedure for the .L Ford Escort. I also describe how to perform the procedure on a .L. These videos are intended .Serpentine Belt using a Tensioner. The Serpentine Belt Diagram to the right uses a tensioner and is from a .L big block. Notice that the smooth side of the belt is .