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Lycoming
Ask Paul: Adding insult to injury
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
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?
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?
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?
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?
There is no problem removing the vacuum pump drive from the engine — and there are actually two options for you.
Is a tiny bit of escaping noise OK with properly sealing rings?
The worst thing you can do is to baby the engine.
Should I switch engines on my Super Sport?
If all is working well, why kick a sleeping dog?