Carb heat on Warrior (LYCOMING O-320-D3G)?
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Originally Posted by SN3Guppy
(Along with destructive practices like pulling the propeller through to "limber up the oil" as part of a preflight, etc).
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Actually no, radials don't require this...especially as they aren't even wet sump...but the point was it's a fallacy that's often bantied about in the hangar or pilot's lounge when talking about light airplane engines, and is representative of many myths regarding light airplane engine operation.
Radial engines are pulled through, incidentally, to check for hydraulic lock; some must be pulled through on the starter to protect the engine, as the starter will slip, whereas using the propeller and the leverage it provides may damage the engine. Other engines are pulled through by hand. You're right, however; a detailed discussion of that topic merits a different thread...but there's nothing to debate there, so it may be a very short thread.
Radial engines are pulled through, incidentally, to check for hydraulic lock; some must be pulled through on the starter to protect the engine, as the starter will slip, whereas using the propeller and the leverage it provides may damage the engine. Other engines are pulled through by hand. You're right, however; a detailed discussion of that topic merits a different thread...but there's nothing to debate there, so it may be a very short thread.
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but there's nothing to debate there, so it may be a very short thread.
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It caused a CHT rise of 2 degrees once stabilized
I tried to operate lean of peak, but the engine just could not run smoothly ........ no matter how precisely I leaned past peak, it would stumble right away.
Remember, from the gospel according to SNS3Guppy:
Any recip engine can easily be run leak of peak, simply by adjusting the mixture to a lean of peak condition.
I've operated recip engines lean of peak from small displacement engines to large radials...each with carburetors, sometimes fully outfitted with individual cylinder instrumentation, sometimes not. And yes, it really can be done. Just not by you, it would seem. By thousands of others...yes. But not by you. And that's okay...because nobody is forcing you to operate that way, and you don't need to do so.
Fly Conventional Gear
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Thanks Pilot DAR - very interesting as Islander2 says. Your description of leaning is also pretty much what I've experienced as well with both the O-320 and O-360.
