What was found
(CAN) ENGINE STARTED TO RUN ROUGH IN FLIGHT AND THEN QUIT. AIRCRAFT FORCED TO DO EMERG LANDING. PRIOR TO INCIDENT, 4.1 HRS EARLIER, RIGHT MAG ROUGH AND DROPPING BELOW LIMITS ON STATIC RUN. MAG REMOVED INTERNAL TIMING SET, REINSTALLED. POINT GAP PRIOR TO RE-TIMING FOUND CLOSER THAN NORMAL. JUST ATTRIBUTED TO POINTS WEARING IN. AFTER FORCED LANDING, MAG REMOVED, POINTS CHECKED, NO POINT GAP NOTED. POINTS WERE TIGHT, WERE NOT MOVABLE, HAD NOT MOVED SINCE INTERNAL TIMING HAD BEEN CARRIED OUT. POINTS REMOVED, APPEARED PLASTIC CAM FOLLOWER MELTED, CAM FOLLOWER WORN DOWN TO APPROX. 1/2 OF NEW SET. CAM FOLLOWER APPEARED TO HAVE GOTTEN HOT. CONDENSORS, MAG HAVE BEEN SENT FOR FURTHER INVESTIGATION. (X)