by Paul McBride | Dec 29, 2022 | #Aircraft, 20230112, aircraft engines, Aviation News, flying, General Aviation, Lycoming Engines, Opinion, Pilots
Reader Jeffrey A. Hughes asks our engines expert: What is the advantage to doing a high compression conversion to a Lycoming O-320 (from 150 hp to 160 hp)? I suppose the obvious answer is 10 more horsepower, but my natural inclination, given the name “high...
by Ben Visser | Dec 19, 2022 | #Aircraft, 20221222, aircraft engines, Aviation News, flying, General Aviation, Lycoming Engines, Opinion, Pilots, Visser's Voice
Recently an engine rebuilder called with a question I had not heard before. He asked if multigrade oils would increase the possibility of valve sticking in piston aircraft engines. My first response was “why would you think that?” Then I started to think through the...
by Paul McBride | Aug 8, 2022 | #Aircraft, 20220609, aircraft engines, Ask Paul, Aviation News, flying, General Aviation, Lycoming Engines, Opinion, Pilots
I recently bought a project Stinson Station Wagon 108-3 that is equipped with an O-435 Lycoming engine. Is there a way to determine if the engine is the O-435 190-hp or the O-435 225-hp? Read...
by Paul McBride | Jul 31, 2022 | #Aircraft, 20220811, Ask Paul, Aviation News, Engines, flying, General Aviation, Lycoming Engines, Opinion, Pilots
Question for Paul McBride, the General Aviation News engines expert: Does anyone make an adjustable air shutter for the Lycoming 360 engine? When I blocked mine off and flew to Florida and back I ran a 200° oil temperature. Read...
by Ben Visser | Jul 27, 2022 | #Aircraft, 20220623, aircraft engines, Aviation News, flying, General Aviation, Lycoming Engines, Opinion, Pilots, Visser's Voice
The mechanic listed an oil change as part of the inspection, even though the aircraft had been flown just 12 hours in the last 12 months. The owner insisted it did not need an oil change since the manufacturer recommends an oil change only every 50 hours. He...
by Paul McBride | Jul 3, 2022 | #Aircraft, 20220707, Ask Paul, Aviation News, Engines, flying, General Aviation, Lycoming Engines, Opinion, Pilots
I suspect the cause of all of this would be that when the higher compression ratio pistons were installed, the carburetor was never compensated to provide a higher fuel ratio to support the higher horsepower being taken out of the engine. Read...
