Welcome to the forum.

I have probably that same pump. Normal case temp is around 140 deg F if I recall correctly so they do run hot but there should be air flow. The fan is at the end closest to the pump and sucks air in those vents and blows out the rear. Possibly some critter built a nest in there and is blocking the air flow. You can pop the back cover off exposing the starting switch, capacitor, thermal switch and the whole rear end and with some high pressure air you should be able to blow toward the front. If you stick something in there to clean out debris just be careful you don't knick the windings.
Al

Edit: There is a pic of the back end here. Hope you can view the pic.
http://www.poolforum.com/pf2/showthr...0447#post30447