KR> Cylinder Heads

[laser...@juno.com]

> Running an engine to rich does not burn valves. 

Well, without putting too much of a point on it, you're quite wrong.  

Running rich not only creates deposits that get lodged between the valve
faces and seats and allow the combustion gasses to blow through and burn
the metal, but these deposits also prevent the valve from cooling which
it does through full contact with the seat.  About 75% of the total valve
cooling comes from full contact with the seat.  If it can't fully seat
it's easy to understand why the result is a burned valve. 

Along with these issues, the unburned deposits resulting from a
continuously-rich mixture also build up between the valve stem and its
guide eventually impairing the free movement of the valve.  The spring
eventually loses its battle with the stem/guide friction and at that
point the valve can no longer fully seat.  This struggle between the
spring and the valve stem/guide also contributes heat to the mix.  

All of this is part of the same process, and it comes from continuously
running rich.  

If one doesn't have a carb with a mixture control I suppose one is stuck
with taking the heads off at frequent intervals to clean things out. 
Early planes and early carbs didn't have mixture controls and in those
days it was normal to take the engines apart frequently.

I've found it valuable to treat my converted VW engine as I would an
aircraft engine (which, come to think of it, it is isn't it!)  With that
in mind, in the current issue of Sport Aviation there is a good article
by Mike Busch on using CHT instead of EGT for leaning.  In addition,
there is a wealth of information out there by John Deakin, Mike Busch,
and the late Bob Hoover.  I think even Langford has written on this
subject.  Old timers' wagging fingers aside, there's no excuse these days
with our internet access for not understanding how destructive running an
engine continuously rich is.

Here's some good links:

http://www.avweb.com/news/pelican/182155-1.html

http://www.avweb.com/news/pelican/182084-1.html

http://www.avweb.com/news/pelican/182132-1.html

Richening the mixture has its place - on takeoff and initial climb and
anytime you're running above 75% percent power and need the fuel for
cooling.  From what I've seen though, there are many really badly
informed pilots who never touch their mixture controls and fully expect
to have to take the heads off every 200-300 hours and clean out all the
black stuff.  It's what they "learned" from some other ill-informed
person and they've never questioned this "wisdom".  

Thanks to the easy access these days of new and good information that
some very smart people have been kind enough to provide for free, there
is no longer any excuse for adhering to the practices of the ignorant. 
That being said, everybody ought to run their engine as they see fit. 
You'll get back exactly what you put into it.

Mike
KSEE





Globe Life Insurance
$1* Buys $50,000 Life Insurance. Adults or Children. No Medical Exam.
http://thirdpartyoffers.juno.com/TGL3141/4cd08bc96425a1c400m04vuc

KR> welding aluminum

[Mark Langford]

Bob Buzby wrote:

> "Necessity is the Mother of Invention..."  -Jonathan Swift  (16th 
> Century ?  -"Gulliver's Travels")

and then "or, was that Plato...?  (another soul with many Ideas...LOL !)"


Bob,

Apparently you haven't read the rules of the list...something about quippy 
little one-liners that add nothing to furthering the cause of building or 
flying KRs, and not deleting all of the other stuff posted previous.  There 
were five posts fastened to the bottom of yours that should have been 
deleted.  My fuse is pretty short right now...so please clean up your act or 
simply stop posting to the list.  That goes for everybody else that really 
has nothing really to say.

WHAT'S IT GOING TO TAKE TO GET THROUGH TO YOU PEOPLE???

Mark Langford
N56ML "at" hiwaay.net
website at http://www.N56ML.com
 

KR> welding aluminum

[Bob Buzby]

or, was that Plato...?  (another soul with many Ideas...LOL !)

> From: fatl...@hotmail.com
> To: kr...@mylist.net
> Subject: RE: KR> welding aluminum
> Date: Tue, 2 Nov 2010 14:33:15 -0700
> 
> 
> "Necessity is the Mother of Invention..."  -Jonathan Swift  (16th 
> Century ?  -"Gulliver's Travels")
> 
> > Date: Tue, 2 Nov 2010 17:19:11 -0400
> > Subject: Re: KR> welding aluminum
> > From: jose.fuen...@gmail.com
> > To: kr...@mylist.net
> > 
> > LOL thanks, I have so many custom changes to my BD plane that anyone
> > experenced with the model will note them real fast LOL.
> > 
> > I've been wanting to do a fly by wire design too, would be super easy, but
> > I've been stuck on how to do the backup stick for manual control if
> > something was to happen to the electronics.
> > 
> > joe
> > 
> > On Tue, Nov 2, 2010 at 5:15 PM, Bob Buzby  wrote:
> > 
> > >
> > > excellent experimental philosophy...!   LOL !
> > >
> > > > Date: Tue, 2 Nov 2010 16:51:44 -0400
> > > > Subject: Re: KR> welding aluminum
> > > > From: jose.fuen...@gmail.com
> > > > To: kr...@mylist.net
> > >  >
> > > > Is the goal here to make alumn tanks?
> > > >
> > > > I did that for my BD4 but, I had made a cardboard mockup of the tank 
> > > > that
> > > > fits in the hole and gave it to a shop and said MAKE IT REAL, they made
> > > it
> > > > real alright LOL.
> > > >
> > > > Next time I'm going to use that foam stuff and place a big bag in the
> > > area
> > > > and fill it with the foam and wait for it to harden, probably alot 
> > > > easier
> > > to
> > > > make a mold that way LOL.
> > > >
> > > > Joe
> > > >
> > > > On Tue, Nov 2, 2010 at 3:20 PM, Craig Williams 
> > > wrote:
> > > >
> > > > > John,
> > > > >
> > > > > Yes, all that I have read and seen about gas welding aluminum 
> > > > > indicates
> > > > > that finessing the flame is key.  The only way to learn it is by doing
> > > and
> > > > > getting the feel.  I look forward to the challenge.
> > > > >
> > > > > Craig
> > > > > www.kr2seafury.com
> > > > >
> > > > > --- On Tue, 11/2/10, John Caudle  wrote:
> > > > >
> > > > > From: John Caudle 
> > > > > Subject: Re: KR> welding aluminum
> > > > > To: "KRnet" 
> > > > > Date: Tuesday, November 2, 2010, 4:48 PM
> > > > >
> > > > > Hi Craig,
> > > > >
> > > > > Welding aluminum with gas is about the same as using a TIG.
> > > > > With gas you will also need flux. Aluminum welding takes lots of
> > > practice.
> > > > > I would suggest you pickup some stock that is thinner than what you
> > > > > will be using to build the tank and practice. Heat control is the road
> > > to
> > > > > success.  When the aluminum will turn shinny one of two things will
> > > happen.
> > > > > 1) You make a hole.  2) You start welding.
> > > > >
> > > > > net.org/info.html
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > ___
> > > > > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> > > > > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> > > > > please see other KRnet info at http://www.krnet.org/info.html
> > > > >
> > > >
> > > >
> > > >
> > > > --
> > > > Jose Fuentes
> > > > Founding Father (one of and former Vice Prez) of Capital City.NET User's
> > > > Group
> > > > Former Microsoft MVP
> > > > http://blogs.aspadvice.com/jfuentes
> > > > ___
> > > > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> > > > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> > > > please see other KRnet info at http://www.krnet.org/info.html
> > >
> > > ___
> > > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> > > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> > > please see other KRnet info at http://www.krnet.org/info.html
> > >
> > 
> > 
> > 
> > -- 
> > Jose Fuentes
> > Founding Father (one of and former Vice Prez) of Capital City.NET User's
> > Group
> > Former Microsoft MVP
> > http://blogs.aspadvice.com/jfuentes
> > ___
> > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> > please see other KRnet info at http://www.krnet.org/info.html
> 
> ___
> Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> please see other KRnet info at http://www.krnet.org/info.html

KR> welding aluminum

[Bob Buzby]

"Necessity is the Mother of Invention..."  -Jonathan Swift  (16th 
Century ?  -"Gulliver's Travels")

> Date: Tue, 2 Nov 2010 17:19:11 -0400
> Subject: Re: KR> welding aluminum
> From: jose.fuen...@gmail.com
> To: kr...@mylist.net
> 
> LOL thanks, I have so many custom changes to my BD plane that anyone
> experenced with the model will note them real fast LOL.
> 
> I've been wanting to do a fly by wire design too, would be super easy, but
> I've been stuck on how to do the backup stick for manual control if
> something was to happen to the electronics.
> 
> joe
> 
> On Tue, Nov 2, 2010 at 5:15 PM, Bob Buzby  wrote:
> 
> >
> > excellent experimental philosophy...!   LOL !
> >
> > > Date: Tue, 2 Nov 2010 16:51:44 -0400
> > > Subject: Re: KR> welding aluminum
> > > From: jose.fuen...@gmail.com
> > > To: kr...@mylist.net
> >  >
> > > Is the goal here to make alumn tanks?
> > >
> > > I did that for my BD4 but, I had made a cardboard mockup of the tank that
> > > fits in the hole and gave it to a shop and said MAKE IT REAL, they made
> > it
> > > real alright LOL.
> > >
> > > Next time I'm going to use that foam stuff and place a big bag in the
> > area
> > > and fill it with the foam and wait for it to harden, probably alot easier
> > to
> > > make a mold that way LOL.
> > >
> > > Joe
> > >
> > > On Tue, Nov 2, 2010 at 3:20 PM, Craig Williams 
> > wrote:
> > >
> > > > John,
> > > >
> > > > Yes, all that I have read and seen about gas welding aluminum indicates
> > > > that finessing the flame is key.  The only way to learn it is by doing
> > and
> > > > getting the feel.  I look forward to the challenge.
> > > >
> > > > Craig
> > > > www.kr2seafury.com
> > > >
> > > > --- On Tue, 11/2/10, John Caudle  wrote:
> > > >
> > > > From: John Caudle 
> > > > Subject: Re: KR> welding aluminum
> > > > To: "KRnet" 
> > > > Date: Tuesday, November 2, 2010, 4:48 PM
> > > >
> > > > Hi Craig,
> > > >
> > > > Welding aluminum with gas is about the same as using a TIG.
> > > > With gas you will also need flux. Aluminum welding takes lots of
> > practice.
> > > > I would suggest you pickup some stock that is thinner than what you
> > > > will be using to build the tank and practice. Heat control is the road
> > to
> > > > success.  When the aluminum will turn shinny one of two things will
> > happen.
> > > > 1) You make a hole.  2) You start welding.
> > > >
> > > > net.org/info.html
> > > >
> > > >
> > > >
> > > >
> > > > ___
> > > > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> > > > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> > > > please see other KRnet info at http://www.krnet.org/info.html
> > > >
> > >
> > >
> > >
> > > --
> > > Jose Fuentes
> > > Founding Father (one of and former Vice Prez) of Capital City.NET User's
> > > Group
> > > Former Microsoft MVP
> > > http://blogs.aspadvice.com/jfuentes
> > > ___
> > > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> > > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> > > please see other KRnet info at http://www.krnet.org/info.html
> >
> > ___
> > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> > please see other KRnet info at http://www.krnet.org/info.html
> >
> 
> 
> 
> -- 
> Jose Fuentes
> Founding Father (one of and former Vice Prez) of Capital City.NET User's
> Group
> Former Microsoft MVP
> http://blogs.aspadvice.com/jfuentes
> ___
> Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> please see other KRnet info at http://www.krnet.org/info.html

KR> welding aluminum

[Jose Fuentes]

LOL thanks, I have so many custom changes to my BD plane that anyone
experenced with the model will note them real fast LOL.

I've been wanting to do a fly by wire design too, would be super easy, but
I've been stuck on how to do the backup stick for manual control if
something was to happen to the electronics.

joe

On Tue, Nov 2, 2010 at 5:15 PM, Bob Buzby  wrote:

>
> excellent experimental philosophy...!   LOL !
>
> > Date: Tue, 2 Nov 2010 16:51:44 -0400
> > Subject: Re: KR> welding aluminum
> > From: jose.fuen...@gmail.com
> > To: kr...@mylist.net
>  >
> > Is the goal here to make alumn tanks?
> >
> > I did that for my BD4 but, I had made a cardboard mockup of the tank that
> > fits in the hole and gave it to a shop and said MAKE IT REAL, they made
> it
> > real alright LOL.
> >
> > Next time I'm going to use that foam stuff and place a big bag in the
> area
> > and fill it with the foam and wait for it to harden, probably alot easier
> to
> > make a mold that way LOL.
> >
> > Joe
> >
> > On Tue, Nov 2, 2010 at 3:20 PM, Craig Williams 
> wrote:
> >
> > > John,
> > >
> > > Yes, all that I have read and seen about gas welding aluminum indicates
> > > that finessing the flame is key.  The only way to learn it is by doing
> and
> > > getting the feel.  I look forward to the challenge.
> > >
> > > Craig
> > > www.kr2seafury.com
> > >
> > > --- On Tue, 11/2/10, John Caudle  wrote:
> > >
> > > From: John Caudle 
> > > Subject: Re: KR> welding aluminum
> > > To: "KRnet" 
> > > Date: Tuesday, November 2, 2010, 4:48 PM
> > >
> > > Hi Craig,
> > >
> > > Welding aluminum with gas is about the same as using a TIG.
> > > With gas you will also need flux. Aluminum welding takes lots of
> practice.
> > > I would suggest you pickup some stock that is thinner than what you
> > > will be using to build the tank and practice. Heat control is the road
> to
> > > success.  When the aluminum will turn shinny one of two things will
> happen.
> > > 1) You make a hole.  2) You start welding.
> > >
> > > net.org/info.html
> > >
> > >
> > >
> > >
> > > ___
> > > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> > > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> > > please see other KRnet info at http://www.krnet.org/info.html
> > >
> >
> >
> >
> > --
> > Jose Fuentes
> > Founding Father (one of and former Vice Prez) of Capital City.NET User's
> > Group
> > Former Microsoft MVP
> > http://blogs.aspadvice.com/jfuentes
> > ___
> > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> > please see other KRnet info at http://www.krnet.org/info.html
>
> ___
> Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> please see other KRnet info at http://www.krnet.org/info.html
>



-- 
Jose Fuentes
Founding Father (one of and former Vice Prez) of Capital City.NET User's
Group
Former Microsoft MVP
http://blogs.aspadvice.com/jfuentes

KR> welding aluminum

[Bob Buzby]

excellent experimental philosophy...!   LOL !

> Date: Tue, 2 Nov 2010 16:51:44 -0400
> Subject: Re: KR> welding aluminum
> From: jose.fuen...@gmail.com
> To: kr...@mylist.net
> 
> Is the goal here to make alumn tanks?
> 
> I did that for my BD4 but, I had made a cardboard mockup of the tank that
> fits in the hole and gave it to a shop and said MAKE IT REAL, they made it
> real alright LOL.
> 
> Next time I'm going to use that foam stuff and place a big bag in the area
> and fill it with the foam and wait for it to harden, probably alot easier to
> make a mold that way LOL.
> 
> Joe
> 
> On Tue, Nov 2, 2010 at 3:20 PM, Craig Williams  wrote:
> 
> > John,
> >
> > Yes, all that I have read and seen about gas welding aluminum indicates
> > that finessing the flame is key.  The only way to learn it is by doing and
> > getting the feel.  I look forward to the challenge.
> >
> > Craig
> > www.kr2seafury.com
> >
> > --- On Tue, 11/2/10, John Caudle  wrote:
> >
> > From: John Caudle 
> > Subject: Re: KR> welding aluminum
> > To: "KRnet" 
> > Date: Tuesday, November 2, 2010, 4:48 PM
> >
> > Hi Craig,
> >
> > Welding aluminum with gas is about the same as using a TIG.
> > With gas you will also need flux. Aluminum welding takes lots of practice.
> > I would suggest you pickup some stock that is thinner than what you
> > will be using to build the tank and practice. Heat control is the road to
> > success.  When the aluminum will turn shinny one of two things will happen.
> > 1) You make a hole.  2) You start welding.
> >
> > net.org/info.html
> >
> >
> >
> >
> > ___
> > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> > please see other KRnet info at http://www.krnet.org/info.html
> >
> 
> 
> 
> -- 
> Jose Fuentes
> Founding Father (one of and former Vice Prez) of Capital City.NET User's
> Group
> Former Microsoft MVP
> http://blogs.aspadvice.com/jfuentes
> ___
> Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> please see other KRnet info at http://www.krnet.org/info.html

KR> welding aluminum

[Jose Fuentes]

Is the goal here to make alumn tanks?

I did that for my BD4 but, I had made a cardboard mockup of the tank that
fits in the hole and gave it to a shop and said MAKE IT REAL, they made it
real alright LOL.

Next time I'm going to use that foam stuff and place a big bag in the area
and fill it with the foam and wait for it to harden, probably alot easier to
make a mold that way LOL.

Joe

On Tue, Nov 2, 2010 at 3:20 PM, Craig Williams  wrote:

> John,
>
> Yes, all that I have read and seen about gas welding aluminum indicates
> that finessing the flame is key.  The only way to learn it is by doing and
> getting the feel.  I look forward to the challenge.
>
> Craig
> www.kr2seafury.com
>
> --- On Tue, 11/2/10, John Caudle  wrote:
>
> From: John Caudle 
> Subject: Re: KR> welding aluminum
> To: "KRnet" 
> Date: Tuesday, November 2, 2010, 4:48 PM
>
> Hi Craig,
>
> Welding aluminum with gas is about the same as using a TIG.
> With gas you will also need flux. Aluminum welding takes lots of practice.
> I would suggest you pickup some stock that is thinner than what you
> will be using to build the tank and practice. Heat control is the road to
> success.  When the aluminum will turn shinny one of two things will happen.
> 1) You make a hole.  2) You start welding.
>
> net.org/info.html
>
>
>
>
> ___
> Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> please see other KRnet info at http://www.krnet.org/info.html
>



-- 
Jose Fuentes
Founding Father (one of and former Vice Prez) of Capital City.NET User's
Group
Former Microsoft MVP
http://blogs.aspadvice.com/jfuentes

KR> welding aluminum

[Craig Williams]

John, 

Yes, all that I have read and seen about gas welding aluminum indicates that 
finessing the flame is key.  The only way to learn it is by doing and getting 
the feel.  I look forward to the challenge.

Craig
www.kr2seafury.com

--- On Tue, 11/2/10, John Caudle  wrote:

From: John Caudle 
Subject: Re: KR> welding aluminum
To: "KRnet" 
List-Post: krnet@list.krnet.org
Date: Tuesday, November 2, 2010, 4:48 PM

Hi Craig,

Welding aluminum with gas is about the same as using a TIG.
With gas you will also need flux. Aluminum welding takes lots of practice.  
I would suggest you pickup some stock that is thinner than what you
will be using to build the tank and practice. Heat control is the road to
success.  When the aluminum will turn shinny one of two things will happen.
1) You make a hole.  2) You start welding.

net.org/info.html

KR> Corvairs / VW's/ Continentals / Lycombing

[Jeff York]

Larry,

With great respect, I am going to agree and disagree. I also had an 0-200 in my 
Varieze and worked on many of them in that aviation facitity I mentioned 
previous. As far as Corvairs being 50 year old technology yes the block is 
pretty much so, but so is the block of nearly every production engine out 
there. 
As far as that goes, the technology of the 0-200 is in the range of 80 year old 
technology and borowed parts from such things as a tractor engine for its fuel 
delivery (in the Marvel Shubler) and oter parts. That said, and from my engine 
and work experience a 0-200 will never produce 100 hp. In the data and test 
seen 
at that facility I mentioned again previous, and as I recall, a 0-220 would 
normally produce a constant HP rating near 65 to maybe 80hp. I also seem to 
recall lots of repairs and AD's associated with it as well as some crank 
problems, valve problems and so on. But I dont think with the typical fuel 
delivery, valve train geometry and such associated withh a 0-200, you could 
commonly get 100 HP with reliability.

I am not trying to upset you or knock the 0-200. It was and is a great engine 
and what you have done with it and your KR-2 is well..wow, impressive.

But...what these guys have done with the Corvair in fuel delivery and 
management, valve geometry and head work, camshafts, cranks and so on is 
unmatced by anything I have seen in the common aircraft engine. Or at least in 
the engine price range that I will ever be in.

This is coming from someone (myself) that has a VW engine and feels that what 
Steve Bennet at GPAS as done  with it, is to make it a super reliable motor. I 
also think the and Linda are tow of the best people in the industry and there 
support is second to nobody.

My humble opnion, the six cylinders engines like the Corvair will always be 
smoother and more reliable and produce more reliable power then a 4 cylinder. 
We 
also replaced a lot of insturments in Pipers and the chief mechanic said it was 
due to the vibrations associated with 4 cyl Lycoming engines. 


Jeff York
KR-2
Lexington/Georgetown Airport for 2012




Being an 0-200 driver, I'm thinking that the 0-200 is the 
"reliability king" for the KR.  I see the Corvair, with the exception 
of the front bearing, as being 50 year old technology with much of 
it's design copied from the good old Continentals and 
Lycombings.  Pushing the Corvair past the 100 hp range of the 0-200 
is putting it more in to the experimental range.  I certainly respect 
the work done by the Corvair guys but not being an engine mechanic I 
chose to stick with the 0-200 and sold the three Corvair engines I 
had.  To each his own based on their experience and comfort level.

Larry Flesner (still loving my 2200+ hour 0-200 )


___
Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
please see other KRnet info at http://www.krnet.org/info.html

KR> Intro of my self

[Jose Fuentes]

Be nice to get to miami with fuel to spare which is 500 miles.

I agree on flying, right now the plane needs some fixing but I don't want to
do anything major to it right now, all the insides were taken out, so I have
to rewire the pannel as well as put everything back inside and bolt on the
motor and setup everything there and do minor repairs to the body and
wings/surfaces and then paint. That's the min to get it in the air. The 1
addon I want to get done while I'm doing all the wireing anyways is to get
the position/anti-collision lights in place and the landing lights.

Joe

On Tue, Nov 2, 2010 at 11:19 AM, Virgil N. Salisbury
wrote:

> 13 Gal is 2/3 Hours flying. How much air time do you need ?
> FLY don't fix, Virg
>
>
> On 11/2/2010 9:46 AM, Jose Fuentes wrote:
> > Hi Everyone,
> >
> > My Name is Joe Fuentes,
> >
> > I'm planning on buying a KR2 and will probably finish the transaction
> I've
> > started in mid Nov. The KR2 is a very interesting plane and has good
> speed
> > which is what I'm looking for. The plane I'm looking at only has the
> > standard 13-15gal header tank. It also has a Rev Master 2100 rebuilt. I
> need
> > to put things back together and do some body work (hits and such here and
> > there) but over all the plane looks to be in good condition. I'm also
> > planning on getting it approved for VFR Night (as currently it has no
> > position/anticolision lights or headlights).
> >
> >
>
>
>  ___
> Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> please see other KRnet info at http://www.krnet.org/info.html
>



-- 
Jose Fuentes
Founding Father (one of and former Vice Prez) of Capital City.NET User's
Group
Former Microsoft MVP
http://blogs.aspadvice.com/jfuentes

KR> welding aluminum

[Larry Knox]

I bought a new one a few years ago and never had enough need for it to take
the time to learn how to use it. If you are interested and I can make sure I
have everything in the case I will make a real deal on it.
la...@lebanair.com 

-Original Message-
From: krnet-bounces+larry=lebanair@mylist.net
[mailto:krnet-bounces+larry=lebanair@mylist.net] On Behalf Of
cruz...@frontiernet.net
Sent: Tuesday, November 02, 2010 6:57 AM
To: KRnet
Subject: Re: KR> welding aluminum



Craig, 

   I purchased the Henrob torch several years ago. It welds 4130 tube quite
well. Of course you have to practice on some small pieces before you go and
weld on and engine mount or push pull rods. I use 1/8" 4130 rod. It works
very well on auto body panels too. The small concentrated plume  burns with
just 4 psi set for oxygen .  Check out Aircraft Spruce. they sell it
there.   Joe Cruz 

http://www.aircraftspruce.com/catalog/topages/weldingtorch.php 



Tig is nice but the equipment to do it is expensive so I would have to pay
to all my parts made.  With gas I have all the equipment and as I build I
can make changes or totally redesign a part as necessary.  

--- On Tue, 11/2/10, Robert Wood  wrote: 

From: Robert Wood  
Subject: Re: KR> welding aluminum 
To: "KRnet"  
List-Post: krnet@list.krnet.org
Date: Tuesday, November 2, 2010, 3:29 AM 

How about TIG welding? Is that different? 
    Bob 
On Nov 1, 2010, at 4:45 AM, Craig Williams wrote: 

> Well now that I have settled on a tank design ( http:// 
> www.kr2seafury.com/11.html ) I am looking at learning how to gas  
> weld the aluminum tubing as well as 4130.  I have found a class at  




       
___ 
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to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net 
please see other KRnet info at http://www.krnet.org/info.html 
___
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KR> Intro of my self

[Virgil N. Salisbury]

 13 Gal is 2/3 Hours flying. How much air time do you need ?
 FLY don't fix, Virg


 On 11/2/2010 9:46 AM, Jose Fuentes wrote:
> Hi Everyone,
>
> My Name is Joe Fuentes,
>
> I'm planning on buying a KR2 and will probably finish the transaction I've
> started in mid Nov. The KR2 is a very interesting plane and has good speed
> which is what I'm looking for. The plane I'm looking at only has the
> standard 13-15gal header tank. It also has a Rev Master 2100 rebuilt. I need
> to put things back together and do some body work (hits and such here and
> there) but over all the plane looks to be in good condition. I'm also
> planning on getting it approved for VFR Night (as currently it has no
> position/anticolision lights or headlights).
>
>

KR> Corvairs / VW's/ Continentals / Lycombing

[Larry Flesner]

At 09:21 AM 11/2/2010, you wrote:
>I respect the Continental 0-200's
>and such but if you really want HP and you want the reliablility of modern
>technology, ( I think the crank thing is figured out) I believe the 
>WW Corvair
>has it all and I am not sure how you can beat it.
>
>Jeff York
++

Being an 0-200 driver, I'm thinking that the 0-200 is the 
"reliability king" for the KR.  I see the Corvair, with the exception 
of the front bearing, as being 50 year old technology with much of 
it's design copied from the good old Continentals and 
Lycombings.  Pushing the Corvair past the 100 hp range of the 0-200 
is putting it more in to the experimental range.  I certainly respect 
the work done by the Corvair guys but not being an engine mechanic I 
chose to stick with the 0-200 and sold the three Corvair engines I 
had.  To each his own based on their experience and comfort level.

Larry Flesner (still loving my 2200+ hour 0-200 )

KR> Cylinder heads

[Jeff York]

I previously posted a comment on this regarding "Isn't this a sign of running 
to 
lean" 


Now, I know there are others on here who know more than me about engines.My 
experience is mostly working on high performance racing engines,years ago with 
a 
professional international racing team, and also while working in a aviation 
repair facility and some on my own. It seems to me we are talking about two 
differnt things here caused by two differnt causes. Again, as I know it or 
understand and from my experiene. Running an engine to rich does not burn 
valves. It will cause carbon deposits and even lead deposits that yes, need to 
be cleaned off. We seen this a lot in the aviation facility I worked in. But, 
it 
was my experience that an over leaned engine would burn valves, pistons and 
such. An over rich engine caused those carbon deposits but that is not a burned 
valve. It just looked burned because of the carbon.

I agree, any enignie that requires a top overhaul at 200-250 hours seems wrong. 
But, I run a Zenith carb that doesn't really allow for proper mixture control 
on 
my VW either. 


Todays modern engines with fuel injection, O2 sensors and computerized air fuel 
mixture control allow for very precise engine management. That is why it has 
become so common for modern engines to go several hundred thousand miles before 
overhaul. It is also why you are seeing 300 hp small displacement engines that 
can also get good fuel mileage withour blowing up like thos backyard projects 
we 
built years ago. 

Several benefits to proper fuel management including lower carbon passing into 
the engine oil, thus allowing better lubrication as well as better CHT/EHT and 
lower carbon deposits internally and so on.

Again, I said it before about the Marks, Jones and Langford and others as well 
as W Winn and the corvair engine. With all they are doing with fuel injection 
and management. They have built the next generation engine and have taken the 
teething pains out of it for the rest of us. I respect the Continental 0-200's 
and such but if you really want HP and you want the reliablility of modern 
technology, ( I think the crank thing is figured out) I believe the WW Corvair 
has it all and I am not sure how you can beat it.  

Jeff York
KR-2
Lexington/ Georgetown Scott County airport for 2012



Mike stated > I still think a cylinder head recondition and 2 exhaust valves at 
250
hours for only $200 is pretty good. 

Burning exhaust valves at 250 hours . . . or at any number of hours . . .
is not "normal" or "to be expected from VW's".  Burned valves are telling
you you're doing something wrong and I would want to find out what it is.


If you run around rich and fill up your engine with carbon
and other unburned byproducts of combustion then I agree you're going to
have to take your heads off fairly often and clean things up.  

 this probably explains the burned valves since carbon & unburned
byproducts of combustion build up on the seats and lodge between the
valve face and the seat and lead to "burned valves."  

Use your mixture control properly and you'll keep a clean and happy
engine.  

KR> welding aluminum

[cruz...@frontiernet.net]

Craig, 

   I purchased the Henrob torch several years ago. It welds 4130 tube quite 
well. Of course you have to practice on some small pieces before you go and 
weld on and engine mount or push pull rods. I use 1/8" 4130 rod. It works very 
well on auto body panels too. The small concentrated plume  burns with just 4 
psi set for oxygen .  Check out Aircraft Spruce. they sell it there.   Joe Cruz 

http://www.aircraftspruce.com/catalog/topages/weldingtorch.php 



Tig is nice but the equipment to do it is expensive so I would have to pay to 
all my parts made.  With gas I have all the equipment and as I build I can make 
changes or totally redesign a part as necessary.  

--- On Tue, 11/2/10, Robert Wood  wrote: 

From: Robert Wood  
Subject: Re: KR> welding aluminum 
To: "KRnet"  
List-Post: krnet@list.krnet.org
Date: Tuesday, November 2, 2010, 3:29 AM 

How about TIG welding? Is that different? 
    Bob 
On Nov 1, 2010, at 4:45 AM, Craig Williams wrote: 

> Well now that I have settled on a tank design ( http:// 
> www.kr2seafury.com/11.html ) I am looking at learning how to gas  
> weld the aluminum tubing as well as 4130.  I have found a class at  




       
___ 
Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp 
to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net 
please see other KRnet info at http://www.krnet.org/info.html 

KR> Intro of my self

[Jose Fuentes]

Hi Everyone,

My Name is Joe Fuentes,

I'm planning on buying a KR2 and will probably finish the transaction I've
started in mid Nov. The KR2 is a very interesting plane and has good speed
which is what I'm looking for. The plane I'm looking at only has the
standard 13-15gal header tank. It also has a Rev Master 2100 rebuilt. I need
to put things back together and do some body work (hits and such here and
there) but over all the plane looks to be in good condition. I'm also
planning on getting it approved for VFR Night (as currently it has no
position/anticolision lights or headlights).

A little about myself, I've been building a BD-4 all metal plane now for a
couple years, I'm at about 80% with it, wings are nearly done, then I have
alot of electrical and fit the cowling and such plus all the testing of the
systems. All in a hanger at 2J9 airport in North FL, fun I know. I'm also a
student pilot (yes I started building before I even flew) though all I have
left now is the written test and a check ride that stands between me and my
license. I work full time and only have weekends to work on the plane and
only a few hours at a time. I have 2 boys and while they were excited at the
start and wanted to help, now they simply don't want to go anymore :( but I
try to bribe them LOL. Hence the reason I've been looking at the KR2, I
figured the one I'm looking at I could have up and running within a month,
get it inspected and have something to fly around while I work on the family
SUV of a plane. I also figured I could use it to commute since I travel ALOT
(like every week) but only if the project is within 500 miles of 2J9
(Huntsville, AL, Atlanta and down to Miami). The BD4 since it's 4 passenger
I figured we could use on more family outings and such.

Anyways, I do have some questions.

How easy is it to convert the fixed tail draggier to a fixed tri gear? I've
sent en email out to one of the leading makers (it looks like it has their
tail draggier mains) but have yet to hear back from them on the subject.
Need more fuel but do not want to tear open any wings, I saw someone did
some fuel tanks out of PVC sewer pipes and fitted them into the wings, with
all the safety foam and such I wonder how much fuel 4 of these pipes can
hold, as that is an option I can do without messing up the wings I think?
Any recommendations or gotchas I should watch out for?
How easy are they to fly? Is anyone in North FL with a KR2, I would love to
get a chance to fly with someone?

That's all I have right now.

Thanks in advanced and look forward to many more discussions.

Joe

-- 
Jose Fuentes
Founding Father (one of and former Vice Prez) of Capital City.NET User's
Group
Former Microsoft MVP
http://blogs.aspadvice.com/jfuentes

KR> welding aluminum

[Craig Williams]

Tig is nice but the equipment to do it is expensive so I would have to pay to 
all my parts made.  With gas I have all the equipment and as I build I can make 
changes or totally redesign a part as necessary.  

--- On Tue, 11/2/10, Robert Wood  wrote:

From: Robert Wood 
Subject: Re: KR> welding aluminum
To: "KRnet" 
List-Post: krnet@list.krnet.org
Date: Tuesday, November 2, 2010, 3:29 AM

How about TIG welding? Is that different?
    Bob
On Nov 1, 2010, at 4:45 AM, Craig Williams wrote:

> Well now that I have settled on a tank design ( http:// 
> www.kr2seafury.com/11.html ) I am looking at learning how to gas  
> weld the aluminum tubing as well as 4130.  I have found a class at  

KR> Stabilizer and rudder modifications

[cruz...@frontiernet.net]

Larry,
 The gaps between the surfaces seemed a little to big.This was the first thing 
I didn't like. 

- Original Message -
From: "Larry Flesner" 
To: "KRnet" 
Sent: Tuesday, November 2, 2010 8:07:43 AM
Subject: Re: KR> Stabilizer and rudder modifications


>Larry, I was looking to purchase a KR2S , stock built for sale in 
>Florida.  The builder used piano hinge on the rudder and elevator 
>which I thought is substandard and required replacing.
>I'm looking for one to fly right now while I build on my own project.
>Joe Cruz


If the builder changed the entire hinge setup on the elevator and 
rudder, I'd check very close to see what other mods were made and 
judge how they might effect safety.  Not saying the piano hinges 
aren't safe, just haven't seen it done before on a KR.  I'd have to 
see them up close and personal to judge their safety.

Larry Flesner


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KR> Stabilizer and rudder modifications

[Larry Flesner]

>Larry, I was looking to purchase a KR2S , stock built for sale in 
>Florida.  The builder used piano hinge on the rudder and elevator 
>which I thought is substandard and required replacing.
>I'm looking for one to fly right now while I build on my own project.
>Joe Cruz


If the builder changed the entire hinge setup on the elevator and 
rudder, I'd check very close to see what other mods were made and 
judge how they might effect safety.  Not saying the piano hinges 
aren't safe, just haven't seen it done before on a KR.  I'd have to 
see them up close and personal to judge their safety.

Larry Flesner

KR> Stabilizer and rudder modifications

[cruz...@frontiernet.net]

Larry, I was looking to purchase a KR2S , stock built for sale in Florida.  The 
builder used piano hinge on the rudder and elevator which I thought is 
substandard and required replacing. 
I'm looking for one to fly right now while I build on my own project.
Joe Cruz

- Original Message -
From: "Larry Flesner" 
To: "KRnet" 
Sent: Monday, November 1, 2010 7:35:16 PM
Subject: Re: KR> Stabilizer and rudder modifications

At 09:53 AM 11/1/2010, you wrote:
>Steven, If you are talking about piano hinges on the elevator and 
>rudder, I would replace them, just my two cents. Joe
+++

He indicated they were built to plans and I've never heard or seen a 
KR with piano hinges in the tail surfaces.  I have nearly 400 hours 
now on my "standard" KR tail surfaces with aluminum hinges.  They are 
nowhere near worn enough that I'm thinking of major surgery to 
rebuild them.  I agree with several other posts and suggest that if 
the tail is finished I'd finish the airplane and go fly.  If you are 
still flying the airplane after hundreds of hours of flight time and 
they need attention, do a rebuild then.  At that point you'll know 
more what you want anyway.

Anyone looking to "bush" the original hinges use caution.  There is 
not much excess metal in the hinges to be enlarging the holes for bushings.

Larry Flesner


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KR> KR Hinges?

[John Martindale]

Hi Steve and Pete



Just wondering where you got this 5 hinge requirement from? It may have
applied under the old Australian ABAA (Amateur Built Aircraft Approval) but
I don't recall it.  In any case the ABAA is now obsolete and replaced by
Experimental. Under the latter, provided you can convince your Authorised
Person that it is safe (normally by reference to the manufacturer's plans)
then you should get a CoA. My KR2 has the stock three hinges per the plans
and has an experimental CoA. Search the archives for more info on 5 hinges,
the topic has been discussed previously. One point to consider is the hinge
pin alignment/bind when the tail plane or elevator flexes.



Under the Australian Experimental, the only government approvals you need
comply with are:



1.  An approved maintenance schedule, either your own one, the
manufacturers, or CASAs.

2.  Airworthiness Directives of which there are none for the KR2
specifically only general ones relating the engine, prop, cables, radios,
timber inspections, seat belts etc etc.

3.  The conditions on your CoA imposed by the Authorised Person (the
government's delegate).



You can also do your own maintenance if you built the aircraft but I
understand this is likely to change in the New Year unless you have
completed the SAAA maintenance procedures course...that reminds me, I'd
better do the open book exam this weekend...g.



See Ya John



...snip..