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#21
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Why is EGT irrelevant?
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#23
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Corky Scott wrote: John Deakin has written that if you lean to the lean side of peak and the engine runs rough, pulling on full carb heat will distribute the fuel into the air mixture better and give you the ability to lean to the lean side of peak. You might just try it, if only for a little bit if you are too uncomfortable with the process. Doesn't always work. I tried it on the O-360 in my Cherokee and the carb heat made no difference. It still stumbled right after peaking. Induction systems are different from plane to plane and even from year to year on the same model. The carb heat trick does work on certain planes that I fly, so I think it's worth a try. Just don't get your hopes up. John Galban=====N4BQ (PA28-180) |
#24
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BTIZ wrote: Actually I think it was available up into the mid to late 70s... 80/88, and it was colored Red... Red gas was available in some places until fairly recently (historically speaking). My airport was selling it right up until 2002. Oddly enough, I saw some red gas the other day. My tiedown neighbor owns a 150 that never flies. Every few years, he spends several thousand on an annual and maintenance, then ends up not flying. The cycle repeats every other year. Just the other day he had a team of A&Ps and IA surrounding the plane on the ramp, getting it ready to fly again. He's finally selling it. When he sampled the fuel and it came out red colored, everyone on the ramp just busted out laughing. We figured he had the last surviving example of 80/87 aviation gas in the country. Too bad such rarity doesn't make his ramp queen worth any more :-( John Galban=====N4BQ (PA28-180) John Galban=====N4BQ (PA28-180) |
#25
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Dave Stadt wrote:
The only down side to mogas I have noticed is the smell. I had a friend who liked to sniff gasoline, once. God rest his soul. -- This is by far the hardest lesson about freedom. It goes against instinct, and morality, to just sit back and watch people make mistakes. We want to help them, which means control them and their decisions, but in doing so we actually hurt them (and ourselves)." |
#26
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"Jay Honeck" wrote in message news:_eAfe.67985$WI3.223@attbi_s71... The Grape itself cost $1800, and the tank/pump installation (and a couple of other things) make up the other $700 or so. -- Jay Honeck Iowa City, IA Pathfinder N56993 www.AlexisParkInn.com "Your Aviation Destination" Any more details about The Grape? |
#27
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I got my last tankful of 80/87 at RBL about November of last year,
awhile after the last refiner stopped producing it. It had become a rarity over the last ten years or so - you had to know where to go to get it. David Johnson |
#28
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"Corky Scott" wrote in message ... On 9 May 2005 10:21:51 -0700, "Jay Honeck" wrote: I *can* lean a lot more, push my EGTs over 1500 degrees, push my CHTs to 350+ degrees, save some gas -- and risk my new engine. Now, of course, there are many theories on leaning (I've read 'em all), but with my normally aspirated engine having such (relatively) unbalanced fuel flow to each cylinder, I don't feel comfortable aggressively leaning. John Deakin has written that if you lean to the lean side of peak and the engine runs rough, pulling on full carb heat will distribute the fuel into the air mixture better and give you the ability to lean to the lean side of peak. Actually, he says "just a touch" of carb heat. You might just try it, if only for a little bit if you are too uncomfortable with the process. |
#29
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wrote in message oups.com... Corky Scott wrote: John Deakin has written that if you lean to the lean side of peak and the engine runs rough, pulling on full carb heat will distribute the fuel into the air mixture better and give you the ability to lean to the lean side of peak. You might just try it, if only for a little bit if you are too uncomfortable with the process. Doesn't always work. I tried it on the O-360 in my Cherokee and the carb heat made no difference. It still stumbled right after peaking. Induction systems are different from plane to plane and even from year to year on the same model. The carb heat trick does work on certain planes that I fly, so I think it's worth a try. Just don't get your hopes up. Deakin was talking about the engine in the Skylane with the whatsitsname carburator. http://www.avweb.com/news/columns/182084-1.html "Here's another tip for carbureted engines, if you're operating high enough to use full throttle, or nearly so. From the full-throttle position, pull the throttle back until you observe the slightest drop in MP - perhaps a quarter-inch or less. Leave it there. That will cock the throttle plate a little, just enough to set up a vortex that will cause better atomization and mixing of the fuel and air. (This is counterproductive in fuel injected engines.)" In a previous post, I'd said he recommended adding a "touch of carb heat" -- sorry. |
#30
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The Grape itself cost $1800, and the tank/pump installation (and a couple
of other things) make up the other $700 or so. Any more details about The Grape? See: http://alexisparkinn.com/fuel_truck.htm If you have any other questions, please feel free to ask. -- Jay Honeck Iowa City, IA Pathfinder N56993 www.AlexisParkInn.com "Your Aviation Destination" |
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