1.9d is easy peasy. PM me email addy, and I'll send autodata pages.
Crank bolt can be undone by using a good quality socket and tough tommy bar, jammed under the wishbone while vehicle is on the ground. A couple of flicks of the ignition key usually has the bolt creaking into submission. Use locktite when re-fitting, and get it as tight as you can with the car on the floor in gear with the handbrake on, or with the footbrake on if it's jacked up with the wheel off. This method comes direct from Citroen lol.
If it's the DW8 with a damper pulley, you shouldn't need to take the centre bolt out anyway. The four smaller M6 bolts let the large outer pulley come away and gives access to the timing belt sprocket.