I don't actually have a lot of homemade car tools as the ones below I did not have to hand for the 205TD (and the head with the exh manifold and turbo attached was not fun to put on myself!) so I made these:
XUD head guides, two old head bolts chopped down a bit with a nice wide slot cut into them and some grease on the thread simply to assist with popping the head on due to the factory 'forgetting' to put two dowels into the block for some reason.
![Big Grin :D](./images/smilies/icon_e_biggrin.gif)
Tensioner holder, for when you want to remove the mounting and or the tension roller itself, simple angle iron with two bolts, note they are slightly slotted as I did not accurately measure the gap, however once in they are fine as the tensioner plunger holds them: