How to thread drift in 720 posts!!!
Join Date: Apr 2013
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**do valve's burn because they don't rotate or do burnt valves stop rotating?**
Are we assuming that the two are related? I'm not convinced.
I ran an exhaust valve that had 5/80 compression for hundreds of hours to prove that it wasn't leaking while running--only while static.
There is so much we don't' know.
As a savvy philosopher once said, "We can only be certain of that we do not fully understand."
Two things are for sure:
1) Yr Right will not/can not answer my questions,
and,
2) Valve seats rotating in our GA engines has taken this thread to another level.
I'm stuck in Mr. Peabody's "Way-back Machine" for sure.
Are we assuming that the two are related? I'm not convinced.
I ran an exhaust valve that had 5/80 compression for hundreds of hours to prove that it wasn't leaking while running--only while static.
There is so much we don't' know.
As a savvy philosopher once said, "We can only be certain of that we do not fully understand."
Two things are for sure:
1) Yr Right will not/can not answer my questions,
and,
2) Valve seats rotating in our GA engines has taken this thread to another level.
I'm stuck in Mr. Peabody's "Way-back Machine" for sure.
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Ah the me generation
Lots of intelligent people behind most of the posts in this thread, but I have had to clean the BS / F-wit filter regularly
:
Some content has me wondering if "DAMP" & "fit and proper person" screening is failing us mind you
:Some content has me wondering if "DAMP" & "fit and proper person" screening is failing us mind you
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Well said Creampuff, another child wandering
Into adult discussion. Had discussion recently with engineer that was working on Cessna 210'with 6 melted pistons.
The engineer commented that the operator was operating the engine at an incredibly low fuel flow believing he was following the LOP regime
Thoughts?
Into adult discussion. Had discussion recently with engineer that was working on Cessna 210'with 6 melted pistons.
The engineer commented that the operator was operating the engine at an incredibly low fuel flow believing he was following the LOP regime
Thoughts?
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Gee no hooper sounds like what I was talking about the exactly the same. Now Walter I will answer your question later tonight when I finish work here today. For the record now. Is there such a thing as rotating valve seats yes or no. I just wondering if I have to go and find the p# for you. Now this engine is in use here in aust and is stc into another airframe and make what's a great aircraft even better.
Cheers
Cheers
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Hi Walter, I hope you are not suggesting to do away with compression testing.
I recently experienced an O540 with 1 cyl at 20/80, pilot did not notice a thing
but it sounded like an old chafe cutter! Experiments are not always cut and dry.
I believe you and your followers regarding LOP but I have my doubts about the consistent human accuracy factor in pulling that big red knob.
I recently experienced an O540 with 1 cyl at 20/80, pilot did not notice a thing
but it sounded like an old chafe cutter! Experiments are not always cut and dry.
I believe you and your followers regarding LOP but I have my doubts about the consistent human accuracy factor in pulling that big red knob.
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Hi Ethel
Correct you are about compressions although flying a Fletcher (IO 720), pilots could tell when low on compression and were invariably right
Reference the leaning again I feel you have highlighted the major issue
Correct you are about compressions although flying a Fletcher (IO 720), pilots could tell when low on compression and were invariably right
Reference the leaning again I feel you have highlighted the major issue
yr right,
Go find yourself some diagrams of a sleeve valve engine, ( such as Bristol radial aero engines or Willys cars, to name two) there are NO valve seats. Likewise the rotary valve car cylinder head built here in Australia in the late 1950 to early 1960's had no valve seats.
I do not believe there is any such thing as a poppet valve with a rotating seat. If you claim otherwise, facts please, not more bluster and assertions.
Tootle pip!!
PS: It was the Beaufighter that as known as the Whispering Death, there is nothing quiet about a Bristol Hercules or Centaurus on full song ---- and before you ask, I do have direct experience of the Centaurus personally, I am not speaking theoretically.
Go find yourself some diagrams of a sleeve valve engine, ( such as Bristol radial aero engines or Willys cars, to name two) there are NO valve seats. Likewise the rotary valve car cylinder head built here in Australia in the late 1950 to early 1960's had no valve seats.
I do not believe there is any such thing as a poppet valve with a rotating seat. If you claim otherwise, facts please, not more bluster and assertions.
Tootle pip!!
PS: It was the Beaufighter that as known as the Whispering Death, there is nothing quiet about a Bristol Hercules or Centaurus on full song ---- and before you ask, I do have direct experience of the Centaurus personally, I am not speaking theoretically.
oh buy the way its a true story as told to me by an ex fe who was on the deck when it happened.
I still do not believe the story. If your F/E was actually there, he should be able to name names, airline etc ---- prove your story.
In any event, it does prove that it couldn't have been me, as all but about 100 hours of my heavy command time was on aircraft where we had dispensed with the F/E as dead weight.
And just to add a little more information for you, in my airlines, pilots have always been required to be capable of covering the F/E duties on turbine aircraft, the reverse is not so. Indeed, with the introduction of jets, many airlines, world wide, replaced the F/E with a pilot.
Tootle pip!!
Last edited by LeadSled; 18th Apr 2014 at 07:54.
yr right,
Seriously, your are not comparing your level of knowledge with somebody of the training, qualification and experience of somebody like Walter Atkinson (or John Deakin) are you ????
In my opinion, that make you a presumptuous prat, at the very least.
And, once again, you do not answer questions that would prove your claims.
Tootle pip!!
Seriously, your are not comparing your level of knowledge with somebody of the training, qualification and experience of somebody like Walter Atkinson (or John Deakin) are you ????
In my opinion, that make you a presumptuous prat, at the very least.
And, once again, you do not answer questions that would prove your claims.
Tootle pip!!
I used to use lop whenever I had the chance, which wasn't often, had gamis, UBG16 and it seemed to work as advertised.
Mostly though in my line of work I liked the fuel flow needle to be nudging into the MP side of the gauge, at take off, and also plenty rich in the climb. All my engines (520s), went to TBO with no major problems other than the odd factory AD.
I would fully support Walter and Jabba and co in their lop ideas, for the average pilot, done properly with the right set up and gear it's a no brainer. A lot of people simply can't be bothered, or can't justify the set up costs, and just run plenty of fuel, nothing wrong with that either.
"And btw lop old as so it's not in it ether."
Unless iv'e misread that, I think even hard working engineers, (mechanics) at the coal face may even be having another think on the subject?
Mostly though in my line of work I liked the fuel flow needle to be nudging into the MP side of the gauge, at take off, and also plenty rich in the climb. All my engines (520s), went to TBO with no major problems other than the odd factory AD.
I would fully support Walter and Jabba and co in their lop ideas, for the average pilot, done properly with the right set up and gear it's a no brainer. A lot of people simply can't be bothered, or can't justify the set up costs, and just run plenty of fuel, nothing wrong with that either.
"And btw lop old as so it's not in it ether."
Unless iv'e misread that, I think even hard working engineers, (mechanics) at the coal face may even be having another think on the subject?
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Lead sled
I sent you a PM and you didn't even respond to it.
Now next time aircrash investigation is on and they show a pilot doing dumb things that a f/e would have stopped them from doing. Its a well known fact that the F/E stopped a lot of accidents and although being replaced by a computer the outcomes have shown what a mistake it is
. Now as for name I can give you name and airlines and names place events federal police investigator's names to the act that I sent you. I can back up everything I say. What cause you drive a 747 you are a world class expert now on everything to do with maintenance. The average pilot can write on a pin head with an artline texta with a 1/4" nib what they now about maintenance.
Now all I said was whispering death nothing else I know very well what aircraft it was.
Sleave valve so where have I mention anything about valve seats in a sleave valve engine not once I just said that not many people would even know what they where.
Now as for rotating valve seats yes they are in engines that are made today and can be brought new.
I can name them and get a part number and I will.
What walter cant speak for him self now I think will ill let him say what it is a yes or a no what do you think.
Ive done more in aviation than what you will ever do. Even if I stop now you will never catch up.
Sorry for being so blunt
tootie
Cheers
I sent you a PM and you didn't even respond to it.
Now next time aircrash investigation is on and they show a pilot doing dumb things that a f/e would have stopped them from doing. Its a well known fact that the F/E stopped a lot of accidents and although being replaced by a computer the outcomes have shown what a mistake it is
. Now as for name I can give you name and airlines and names place events federal police investigator's names to the act that I sent you. I can back up everything I say. What cause you drive a 747 you are a world class expert now on everything to do with maintenance. The average pilot can write on a pin head with an artline texta with a 1/4" nib what they now about maintenance.
Now all I said was whispering death nothing else I know very well what aircraft it was.
Sleave valve so where have I mention anything about valve seats in a sleave valve engine not once I just said that not many people would even know what they where.
Now as for rotating valve seats yes they are in engines that are made today and can be brought new.
I can name them and get a part number and I will.
What walter cant speak for him self now I think will ill let him say what it is a yes or a no what do you think.
Ive done more in aviation than what you will ever do. Even if I stop now you will never catch up.
Sorry for being so blunt
tootie
Cheers
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Think some people need to read this.
http://www.casa.gov.au/ADFiles/enggen/eng/ENG-004.pdf
Cheers
BTW an AD is LAW and must be complied IAW the AD
http://www.casa.gov.au/ADFiles/enggen/eng/ENG-004.pdf
Cheers
BTW an AD is LAW and must be complied IAW the AD
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AD/ENG/4: A revelation. So now yr right has proved him or herself to be a troll...
I won't give you my thoughts. I will give you what I know.
If this operator and aircraft exist (which they don't), the cause of the 'melted pistons' (which don't exist) is that the engine was being run not rich enough rich of peak or not lean enough lean of peak.
You are liars. Please sue me.
... Had discussion recently with engineer that was working on Cessna 210'with 6 melted pistons.
The engineer commented that the operator was operating the engine at an incredibly low fuel flow believing he was following the LOP regime
Thoughts?
The engineer commented that the operator was operating the engine at an incredibly low fuel flow believing he was following the LOP regime
Thoughts?
If this operator and aircraft exist (which they don't), the cause of the 'melted pistons' (which don't exist) is that the engine was being run not rich enough rich of peak or not lean enough lean of peak.
You are liars. Please sue me.
