The STC allows owners of a 415-C, 415-CD, 415-D, 415-E, 415-G, F-1, F-1A, A-2 and A2-A aircraft to replace their aging, out of production TCM C75 and C85 engines with the TCM O200A 100-hp series powerplant without the loss of Light-Sport Aircraft (LSA) eligibility, according to company officials.
Engines
Is a bad temperature gauge to blame for fluctuating oil temperatures?
I have a Cessna 172R and the oil temperature fluctuates from minimum to maximum constantly until shutdown.
Viral video: Catastrophic engine failure
When Edward Frye took off to break-in a newly overhauled engine on his Cessna 210 Centurion, he didn’t realize that what would happen next would go viral.
What timing should I use in my engine?
Read this very carefully before taking any action: Remember, you’ll be taking more horsepower out of your engine with the increased compression ratio, therefore you’ve got to increase the engine fuel flow amount to support the additional horsepower. Failure to do this could result in severe damage to the engine and possibly cause engine failure.
Still hunting for why my engine won’t hold its RPMs
My 800 hour Since Major Over Haul (SMOH) Lycoming O-540-C4B5 engine won’t hold its RPMs. We’ve done several things to find the problem, but we’re still hunting.
2022 dates for Lycoming Engine School released
The five-day school is offered 12 times in 2022.
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: More on removing vacuum pumps
Thanks to a good friend who acts as my “conscience” for my posts, I’ve been advised that I may have mislead those who may be thinking about permanently removing a vacuum pump in a Lycoming engine in a Piper Arrow III.
What are the best options when it’s time for an engine overhaul?
Before you make any decision, make absolutely certain that when you look at the options, be sure to compare apples to apples. Don’t let prices influence your decision, because the least expensive option may not be the best value.