...how to do this on my web site. While this was on a V8, the process for your diesel, as far as determining stretch goes, is the same.

Go to Cars-Technical-Motor, and look at both the 'Chain Rails' and 'Timing Chain' pictorials. Between these two you shoul get the idea.

You will have to remove your valve cover to see the cam timing marks, and (probably) your fan to allow you to rotate the engine manually.