I used this guide to replace my hinges, but I noticed that the real problem was that the display was separating from the case. I Googled it and found a few reports like (https://discussions.apple.com/thread/371...) indicating that Apple has a replacement program in place addressing this as a latent defect.
I took my machine to the local Apple store, and even though I bought it at the end of 2008, they replaced the display for free.
If you're having a display separation issue it's worth seeing what Apple says before digging into it.
Lorsqu'il en aura reçu, il pourra afficher un graphique de sa réputation au fil du temps.
Voici un aperçu de ce à quoi ressemble ce graphique :
Aucun point de réputation obtenu pour l'instant.