Author: Paul McBride

When Joy Hobbs sent in a photo of her grandfather and his co-workers by Lycoming’s XR-7755-3 engine, it attracted a […]

After the engine sat for several years without being run, it began to backfire about 20 minutes into a test […]

A reader has two questions for Paul McBride, the General Aviation News engines expert, about the Lycoming O-235-C1B engine in an amateur-built […]

Question for Paul McBride, the General Aviation News engines expert: My grandfather, Russell Leuck, worked at Avco Lycoming Engines in 1943. I […]

I have an O-360 Mattituck (experimental) engine installed on my RV-7A. I have been using Aeroshell W100 Plus for more […]

I have read Lycoming Service Instruction 1304J and wondered if I can expect to find a Form 337 for an […]

The Lycoming IO-540-AB1A5 has a rating of 230 hp at 2400 rpm. Can I just change the governor and increase […]

My advice to all who have or will experience metal contamination in an engine: Replace the oil cooler and hoses […]

Given the engine times and now having #2 and #4 pistons and rings replaced and valves rebuilt, I’m leaning heavily […]

A flying club’s maintenance officer wants to upgrade one of the club’s airplane engines, claiming the engine is known for […]