Step 9, 2007 Mac Book Pro right fan replacement. It’s not necessary to disengage the keyboard ribbon, you can just tilt the upper shell back and support it against the screen. Be sure not to put tension on the ribbon and to check that the ribbon “plug” is seated securely on the base before reinstalling the top shell.
These instructions were really great. For $15 I got a used fan off eBay and a Torx T6 driver and Phillips 00 driver from the hardware store. Thanks also for the comment about marking where the plastic clips are by the DVD and IR slot with pencil. When reassembling I slotted a piece of wood (kebab skewer) into the DVD slot and pressed down on the pencil mark with the eraser end of the pencil.
My 10 year old MacBook Pro is going strong. Thanks for these very much. It was fun to do as well.