Questions tagged [lycoming]

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Main battery is discharging with alternator running [duplicate]

In my Cessna 172S, we had a problem about 'main battery discharge' after an hour of flight. We tried doing wiring test on the connection at the master switch which ran from the alternator and ...
박상원's user avatar
2 votes
1 answer
399 views

Why is the RPM limit on a Lycoming IO-540 different in the -C and -D versions?

On a Lycoming IO-540, it seems there is a Max RPM difference between the -C and -D versions (and thus a max HP difference too). Does anybody know what is different in the engines that causes this, or ...
cdeggz's user avatar
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2 votes
2 answers
141 views

Can coaxial rotors be mounted on a piston engine like the Lycoming O-320?

What are the drawbacks of this compared to coaxial configuration with a turboshaft engine?
Goutham Manimaran's user avatar
2 votes
1 answer
5k views

What are advantages and disadvantages of Rotax and Lycoming engine designs?

I am wondering what are advantages and disadvantages of these two designs, e.g. Rotax 912 vs Lycoming O-235, compared to each other. At first glance they are pretty similar (both are 4-cylinder, ...
Konrad's user avatar
  • 1,963
1 vote
2 answers
555 views

What modifications need to be made on an engine that normally uses AVGAS to utilize it with MOGAS? [duplicate]

Asking just out of curiosity. What modifications need to be made on an engine, e.g. Lycoming O-360, that normally uses AVGAS to utilize it with MOGAS?
Konrad's user avatar
  • 1,963
3 votes
1 answer
1k views

Are Lycoming O-360-A4M engines generally known to have right magneto issues at low power settings?

TLDR - I am renting a PA-28 181 (engine Lycoming O-360-A4M), and have noticed that the right mag is rough at low power settings. During before takeoff power checks, both magnetos operate as expected, ...
Anonymous's user avatar
2 votes
2 answers
7k views

How can I decode Lycoming engine number?

How can I decode Lycoming engine number suffices? What does D3G mean in o-320-D3G or D2A in o-320-D2A? Is there any chart or tabel for decode suffixes?
Arian's user avatar
  • 890
9 votes
1 answer
3k views

Causes of High CHTs

I have a Long EZ with a Lycoming O-320 E2D. It had a complete top-end overhaul two years ago, in June 2017. All four cylinders were relined, and pistons and rings were replaced. Since then the ...
Charles Bretana's user avatar
3 votes
2 answers
2k views

Why does the main battery discharge with the alternator running?

In my cessna 172S, when engine running at any RPM, the current at the main battery is below zero, indicating that the alternator is not charging the battery or the battery discharges, but the standby ...
Achmad Syahrul Angga Pratama's user avatar
1 vote
2 answers
619 views

Carb Heat and Lycoming Engines

Why is Carb Heat less of an issue on Lycoming Engines? and if this is true, how much less of an issue is it?
Charles Bretana's user avatar
8 votes
4 answers
11k views

What may be the cause of hot start problems in a Lycoming fuel injected engine?

Cherokee Six, 32-300 1969. Lycoming engine is fuel injected with 450 SMOH. Cold starts are easy: 1/2" throttle, full rich, fuel pump on and hit starter after fuel flow starts. Runs great once running. ...
Marshall's user avatar