Non RV, but spot the problem...
Non RV, but spot the problem...
Can anyone tell me what's wrong in this picture? I'll give you more pics after someone notices...
- captain_john
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Non RV, but spot the problem...
How much time is on it ?
From: RB Lists - Aircraft Engines [mailto:support@rivetbangers.com]
Sent: Friday, April 20, 2007 3:56 PM
To: aircraftengines@rivetbangers.com
Subject: Non RV, but spot the problem...
Can anyone tell me what's wrong in this picture? I'll give you more pics after someone notices...
Chad "WV" Jensen
N755CB RV-7 E6 Subaru, Tip up
SB Fuselage, working inside the upside-down canoe
www.chadandbrittne.com/RV-7.htm
rivetbangers.com - Discussion topic http://www.rivetbangers.com/cgi-php/forums/viewtopic.php?p=17065#17065
Submitted via email
From: RB Lists - Aircraft Engines [mailto:support@rivetbangers.com]
Sent: Friday, April 20, 2007 3:56 PM
To: aircraftengines@rivetbangers.com
Subject: Non RV, but spot the problem...
Can anyone tell me what's wrong in this picture? I'll give you more pics after someone notices...
Chad "WV" Jensen
N755CB RV-7 E6 Subaru, Tip up
SB Fuselage, working inside the upside-down canoe
www.chadandbrittne.com/RV-7.htm
rivetbangers.com - Discussion topic http://www.rivetbangers.com/cgi-php/forums/viewtopic.php?p=17065#17065
Submitted via email
Yup. But it's not where you think it would be...
It pulled the intake tube right out of the sump as well...turned it in to a normally aspirated cylinder instantly.
CJ gets the prize. Not sure what he gets, but he gets it.
This happened today on a Navajo. They took off from here this morning on a photo flight, and developed a rough running engine. This was the cause, obviously.
It pulled the intake tube right out of the sump as well...turned it in to a normally aspirated cylinder instantly.
CJ gets the prize. Not sure what he gets, but he gets it.
This happened today on a Navajo. They took off from here this morning on a photo flight, and developed a rough running engine. This was the cause, obviously.
Re: Non RV, but spot the problem...
About 800 hours.James Ball wrote:How much time is on it ?
- captain_john
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Hmmmm, if there is nothing foreign in the bore, the piston swelled within the jug and ripped it apart!
Is this operator an lean of peak guy?
If so, he better do some more reading.
WOW!
That looks like about 5,000 to me!
CJ
Is this operator an lean of peak guy?
If so, he better do some more reading.
WOW!
That looks like about 5,000 to me!
CJ
RV-7
Garmin G3X with VP-X & a TMX-IO-360 with G3i
It's all over but the flying! 800+ hours in only 3 years!
Garmin G3X with VP-X & a TMX-IO-360 with G3i
It's all over but the flying! 800+ hours in only 3 years!
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What a bunch of rhetoric John! A guy loses a cylinder and you immediately want to blame it on LOP operations? Thats a bit of a stretch don't ya think?captain_john wrote: Is this operator an lean of peak guy?
If so, he better do some more reading.
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- captain_john
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Nope, and as such I didnt try to postulate on it or the pilots operating habits.captain_john wrote:Rhetoric? Hmmmm, no... just wondering. Do you know the answer to the question?
Yeah man. Ugly looking too.The stretch is in the cylinder!
CJ
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- captain_john
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Well, how's this for an explaination of what happened...
It just happens. This is a known weak spot where the top and bottom of the barrel come together. No piston swelling, no improper leaning, it just happens.
The guys in our shop have seen this several times before, and they all agree that it's not an uncommon problem with overhauled cylinders. These were second run cylinders as far as we know.
They are talking about overhauling the whole engine because of unknown damage elsewhere. So, that $5k for one cylinder just went to $40k...
It just happens. This is a known weak spot where the top and bottom of the barrel come together. No piston swelling, no improper leaning, it just happens.
The guys in our shop have seen this several times before, and they all agree that it's not an uncommon problem with overhauled cylinders. These were second run cylinders as far as we know.
They are talking about overhauling the whole engine because of unknown damage elsewhere. So, that $5k for one cylinder just went to $40k...
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Youch, that hurts. But then, they successfully flew it back to the airport, etc. Im glad they still have the option.
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