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Lycoming

Ask Paul: My engine sounds like it has an exhaust leak

By Paul McBride · September 3, 2023 · 5 Comments

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 Wag-Areo Cub.

CubCrafters debuts new engine for Carbon Cub

By General Aviation News Staff · August 17, 2022 ·

The new engine is a fixed pitch version of the larger displacement 186-hp fuel injected constant speed prop CC340 engine first introduced by CubCrafters in 2017.

2022 dates for Lycoming Engine School released

By General Aviation News Staff · October 22, 2021 ·

The five-day school is offered 12 times in 2022.

Ask Paul: Adding insult to injury

By General Aviation News Staff · October 21, 2021 ·

If an engine conversion to 8.5:1 compression ratio pistons was not approved by Lycoming, the conversion to 9.5:1 in your engine is adding insult to injury.

Ask Paul: A reader tip may solve the problem

By Paul McBride · July 8, 2021 ·

A reader’s solution for his engine troubles highlighted in a recent “Tips & tricks from our readers” post may hold the answer for this aviation maintenance pro and the engine problem that’s frustrating him.

Ask Paul: Is my engine burning too much oil?

By Paul McBride · March 7, 2021 ·

My new engine is burning a quart of oil every four to five hours. Some “experts” are telling me I probably have glazed cylinders and others say just keep on flying it hard and the consumption will drop. Should I be concerned?

What’s causing the high level of aluminum in this engine’s oil?

By Paul McBride · February 25, 2021 ·

What could cause such high levels of aluminum in the oil? Inactivity plays a big role, according to our engines expert Paul McBride.

Why do my engines throw out the first quart of oil?

By Paul McBride · February 18, 2021 ·

Through normal operation your engines blow the first quart overboard ending up on the wing and the flaps. I could tell you that this was a design by Lycoming in an effort to prevent corrosion in those areas, but that wouldn’t play very well, so we won’t even go there! Seriously, it’s nothing to worry about, as long as your engine does not have a history of excessive oil consumption.

Ask Paul: Can I permanently remove the vacuum pump?

By Paul McBride · October 12, 2020 ·

There is no problem removing the vacuum pump drive from the engine — and there are actually two options for you.

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