A C210 ON TKOF CLB AT 300 FT DIVERTED DUE TO LOSS OF ENG PWR CAUSED BY A FAILED MAGNETO.

Narrative

CONTINENTAL IO470E WAS ASSEMBLED USING ALL ENG PARTS THAT WERE YELLOW TAGGED OR WHITE TAGGED AND IN ACCORDANCE WITH OVERHAUL MANUAL. THE ENG WAS INSTALLED IN A 1960 C210. THERE WERE AFTER MARKET ENG CTLS INSTALLED WHICH WERE INCLUDED ON THE PRACTICE COPY OF THE 337 FIELD APPROVAL REQUEST BUT DID NOT GET XFERRED TO THE FINAL REQUEST WHICH HAD ABOUT 8 CHANGES TO THE INST PANEL. IN RIGGING THE ENG THROTTLE AND MIXTURE CTLS; THE CESSNA PARTS MANUAL SHOWS PUSH RODS ON THROTTLE AND MIXTURE LINKAGES ON DIFFERENT SIDES THAN THE PARTS MANUAL AND THE HEAD OF THE BOLT IS SHOWN IN DIFFERENT DIRECTIONS. THE THROTTLE AND MIXTURE CTLS WERE NOT THE SAME TRAVEL AS THE ORIGINAL ONES WERE EITHER. I CONTINUED TO LOOSELY ATTACH PUSH RODS; ETC; TO SEE IF ANY PARTS WERE MISSING AND IN NEED OF BEING PURCHASED; BUT THE RIGGING WAS NOT COMPLETED. I HAD ONLY MADE A MENTAL NOTE ABOUT SOMETHING NOT COMPLETED ON THE RIGGING. SEVERAL MONTHS LATER; I WAS PREPARING FOR AN ANNUAL INSPECTION AND DID THE FINAL TIGHTENING ON THE PUSH RODS THINKING THIS COMPLETED THE RIGGING ON THE ENG. THE FUEL PUMP (ENG DRIVEN) WAS YELLOW TAGGED AND I UNDERSTOOD THE FUEL PRESSURE WAS FACTORY PRESET AND NO FURTHER ADJUSTMENT WAS MADE. MY CONTINENTAL MANUAL DOES NOT MENTION A NEED FOR ADJUSTMENT NOR DOES MY CESSNA SVC MANUAL STATE ADJUSTMENT IS NEEDED. IT DOES SAY ABOUT 4 LINES ABOUT AN ADJUST KIT AVAILABLE ABOUT FUEL PRESSURE. BUT; I UNDERSTOOD THE FUEL PRESSURE TO HAVE BEEN ADJUSTED WHEN THE PUMP WAS SENT IN FOR OVERHAUL. ON THE FIRST FLT; DURING TKOF; I HAD A PARTIAL; THEN SEEMINGLY TOTAL LOSS OF ENG PWR. FAA INVESTIGATORS TOLD ME I INCORRECTLY SET UP THE ENG CTLS (BOLT HEAD DIRECTION; THROTTLE AND MIXTURE RIGGING; AND INCORRECT FUEL PRESSURE) AND THAT I WOULD GET A LETTER OF WARNING N MY FILE. A COUPLE DAYS LATER; WHILE AT A CESSNA SVC CTR; WE DISCOVERED A MALFUNCTIONING MAGNETO. THE MAGNETO ON THE TEST BENCH INDICATED OK. BUT WAS FIRING WAY OFF TIME AND ON WHO KNOWS WHAT CYLINDER. THE MAGNETO CHK BEFORE FLT; MANIFOLD PRESSURE; FUEL FLOW; AND ALL OTHER INDICATIONS WERE GOOD. A WITNESS SAID BLACK PUFFS OF SMOKE STARTED COMING OUT OF THE ENG BEFORE AND DURING PWR LOSS. REGARDING THROTTLE/MIXTURE ADJUSTMENTS AND CTLS: 1) MULTIPLE MODIFICATIONS WERE WRITTEN DOWN IN A DIFFERENT ORDER ON PRACTICE COPY OF 337 FIELD APPROVAL REQUEST. WHEN THEY WERE XFERRED TO THE PERMANENT COPY; THE ENG CTLS WEREN'T LISTED. 2) I DON'T FEEL THE BOLT DIRECTION ON THE PUSH RODS WAS A FACTOR BUT I SHOULD HAVE DONE A COMPLETE CHK ACCORDING TO THE BOOK ON THE RIGGING. THE THROTTLE TRAVEL REACHED ITS STOPS AND THE MIXTURE TRAVEL REACHED ITS FULL RICH STOP BUT WAS JUST SHORT OF ITS ICO STOP. ORIGINAL STYLE NEW CABLES WERE INSTALLED AND AFTER MARKET CABLES REMOVED. 3) FUEL PRESSURE ADJUSTMENT WHEN ENG IS INSTALLED AFTER OVERHAUL WAS NOT MENTIONED IN EITHER CONTINENTAL OVERHAUL MANUAL; OR CESSNA SVC MANUAL. FUEL PRESSURE HAS BEEN ADJUSTED AT CESSNA DEALER AND NEW MAGNETO ORDERED.