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I actually like cats, and I'm not mean to animals. If I wasn't mildly allergic to cats, we'd probably have one or two. We had cats before our son was born. He has, right now, two dogs and four cats, with two more cats coming. They live on an acreage and the cats keep the mice at bay. I just...

Triggered, are we?

Wow. That's all we'd need. Sub-strength AN hardware. Once in a while there's a problem with some particular AN or MS number, and service bulletins advise removal and replacement of affected batch numbers, or ADs force the replacement. A few years ago I had to check to make sure we hadn't...

https://alphaaviation.com/belts-replacement-upgrade/

There is likely lots of life left in that pump. Rapco made a couple of different measuring tools to check the vane wear so that you could maximize the life you get from the pump without it failing on you; https://www.rapcoinc.com/pdf/Service letters/Rapco Service Letter RASL-001_Rev_C.pdf...

That engine might need some work on its baffling. It doesn't take much of a leak to push the CHTs and oil temps up.

But as you climb that mix gets richer and richer as the air density decreases, and the engine will start to run rough and lose power. The POH has things to say about that. We had a student call us from a distant airport. He had taken off in the R182 and when climbing the engine was running...

All 172s/182s/206s built from '96 on are injected. That covers the 172R & S/SP models. Some stuff. Not nearly enough. You will note that I seldom say anything on things like IFR piloting, for instance. My IFR rating lapsed (as Canadian IFR ratings do) 24 years ago. Instructor rating lapsed at...

A "bit rich of peak" is a hot place to be. This is what the airplane's AFM says. You have one, right? So what do the temps look like if you lean it to max RPM in the climb?

I like cats. They taste just like chicken.

Done already. Must be 15 years ago. Not cheap. https://www.lycoming.com/engines/ie2

Because of this: We have an awful lot of pilots that don't even understand mixture control or carb heat. Those are simple concepts. They sure aren't going to understand detonation and the factors behind it. Cars used to "ping" at low RPM and high throttle settings. That was detonation, and it...

Based on what I've found in so many airplanes, the engine might get cleaned but nothing else does. Plenty of evidence that the floor and wings have not been opened up for many years, with accumulated dirt and grime and sometimes mouse nests and poop and corrosion and often various hardware lost...

That right there. How many pilots/owners ever read that POH/AFM?

The valve should block the cabin opening when closed, and block the outflow when open. Your valve should have that outflow provision. If it doesn't the new muffler won't last long. It needs constant airflow around it to cool it. Older 150s used a valve like this: The flange was screwed to...

The hoses are built to a TSO spec acceptable to the FAA. From the Stratoflex catalog: So the installer still has the responsibility to see that the hose will perform safely as installed, and to use installation guidance such as found in AC43.13. A straight-ethanol STC would specify...

And from that post: The ethanol STCs will have the hose and seal replacement instructions, as I said in post #106:

My point? To counter nonsense like this: Several dangerous assumptions there. Yes, they do exist. I posted it in that chart. Nowhere did I suggest that it was impossible or difficult to find the right stuff. It was obviously available when those STCs were issued 20+ years ago.

That shot from the Pawnee ethanol STC again: So straight ethanol is OK. Straight 100LL is OK. But mixtures of ethanol and Avgas are limited to a max of 25% Avgas. Why would that be? Obviously, there must be a reason. Do our resident chemists have any idea? If we go to the other STC, the one...

But it only does it in 200-foot increments.