What was found
PIC WAS FLYING THE AIRCRAFT AND CALLED FOR THE APPROPRIATE CHECKLIST. CHECKLIST WAS RUN, WHICH AT THE END CALLED FOR THE AFFECTED ENGINE (RIGHT SIDE) TO BE SHUT DOWN DUE TO RIGHT HAND PYLON OVERHEAT CASS MESSAGE APPEARING. AT THIS TIME WE DECLARED AN EMERGENCY AND ASKED TO DIVERT TO RIL. ON OUR APPROACH BRIEF INTO RIL, CREW DISCUSSED THAT IT WOULD BE AN OVERWEIGHT LANDING INTO RIL. EMERGENCY VEHICLES WERE WAITING FOR US ON THE GROUND, AND AT RAMP DID SPRAY THE BRAKES DOWN, BECAUSE OF SMOKE COMING FROM THEM. NO OTHER ACTION WAS NEEDED.