Aero Engines of Winchester–based at the Winchester, Virginia Regional Airport–has removed the Debonair’s old IO-470-LCK engine and basically hand-delivered it to the overhaul shop. “All went well,” said Aero Engines’ Tom Schwietz, who flew the engine to Genesis Engines by D’Shannon’s overhaul shop in Mooresville, North Carolina. Schwietz’s shop has earned a reputation for quality overhauls and other engine work in its own right, but this kind of personalized service was an unexpected luxury. Schwietz’s colorful background includes buying and selling airplanes in the overseas market, as well as vast experience ferrying general aviation airplanes across the Atlantic. “Just when I tell myself that I’m fed up with ferrying, well, I somehow get the urge to do it again,” he said. “I guess it’s just gets into your blood.”
John Clegg, Genesis Engines’ director of operations, reported today that the Debonair’s engine disassembly has begun in earnest. After Aero Engines brought it to Mooresville’s Lake Norman Airpark, it was taken to the Genesis shop to begin its six-week upgrade process.
Today, Clegg reported that the engine’s new crankshaft (“crank”) has been freshly recertified. The “yellow-tagged” crank (so called because of the yellow tag portion of the paperwork that accompanies it) was declared serviceable and airworthy by an FAA-certified repair station, and Genesis subjected it to magnetic-particle non-destructive testing to make absolutely sure that it had no cracks or other imperfections. Magnetic particle testing involves using a dye penetrant medium that will adhere to any defects, making them visible to Genesis’ technicians. The cranskshaft passed with flying colors.
The newly-recertified crankshaft is necessary because the -N engine uses a crank with four counterweights; the old engine’s crank had just two counterweights. Also, the -N engine’s connecting rods are beefier than the previous engines’. In spite of this, Clegg says that the original crankcase is compatible with the new crankshaft.
That’s it for now. Check back for more news as it happens. The next step should be the arrival of the new ECi cylinder assemblies.