A.E.R.O. has added factory new cylinders for Lycoming engines to its Air Boss line. The PMA’d Lycoming new cylinders are manufactured by the Continental Motors factory. Features of the Air Boss Factory New CMI Cylinders for Lycoming Engines include: Nickel & Carbide Bore Coating or Through-Hardened forged Steel Plateau Bore Finish Moly-Filled Top Compression Ring Tru-Bore Valve Guide In […]
Lycoming Engines
What’s fueling higher engine temps?
Q: I own a factory overhauled O-360 A4A, which I’ve owned since it left the factory. I’ve flown behind it for 600 hours. I recently had a prop strike and the engine was stripped and reassembled with no damage found. All they replaced were the exhaust valve guides and piston rings. (And all the rest as per […]
Video: Lycoming’s diesel engine
Lycoming’s Michael Kraft recently gave AVweb a briefing on the company’s diesel engine, the DEL120. [youtube http://www.youtube.com/watch?v=-or2dQTaJWM&w=560&h=315]
What’s causing a constant roughness in my engine?
Q: I own a 1963 PA24-250 Comanche. Over the past two years I have replaced all six cylinders, both mags, harnesses, primer lines, new fine wire plugs, fuel lines, engine fuel pump, both electric boost pumps, and I am baffled. During cruise settings at 2,400 rpm and 23 inches of manifold pressure, my engine still feels […]
What is causing bent rods and sticking valves?
Q: I am acquainted with two IO-540 engines with 1,000-plus hours that have bent rods in the #5 cylinder and stuck valves in the #2 cylinder. One aircraft was manufactured in 2007 and the other in 2009. The oil has always been changed at 50 hours using Exxon Elite 20/50. Any particular thoughts? RICHARD WEICHMAN, via […]
Aviat Husky CNG visits Lycoming
Last week Lycoming Engines hosted Stu Horn, president of Aviat Aircraft, who flew the company’s Aviat Husky CNG to Williamsport, Pa., which is powered by a Lycoming IO-360-A1D6. The engine was modified to be the world’s first dual-fuel compressed natural gas (CNG) aircraft, and can be powered by CNG or 100LL aviation gasoline with the […]



