For original Macbook Core Duo and Core 2 Duo models, see first picture and remove the following 2 screws from the right hinge mount:

One 6 mm Phillips on the left side of the hinge mount.

One 10 mm Phillips on the right side of the hinge mount.

For Santa Rosa/Penryn and 2009 models, see second picture and remove the following 3 screws from the right hinge mount:

One 3 mm smalller diameter Phillips on the far left.

One 5.2 mm larger diameter, 4.2 mm head Phillips in the middle.

One 10 mm larger diameter, 4.2mm head Phillips from the far right.

Before removing the right hinge mount, take care to see how its pieces fit together, including the small white plastic piece. Knowing how the mount pieces fit together will help with reassembly. Lift the right hinge mount with the small white plastic piece out of the computer.