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912 muffler heat shield

 
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clemwehner



Joined: 02 Feb 2009
Posts: 32

PostPosted: Tue Mar 15, 2016 6:26 pm    Post subject: 912 muffler heat shield Reply with quote

Has anyone found need for a heat shield between the 912UL muffler and the firewall blanket on a KF IV?

I've just run my engine for the first time after 24 years of building and got to thinking about the heat from the muffler.

thanks guys,
Clem Wehner
Lawton, OK
KFIV-912UL


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peteohms



Joined: 31 Oct 2007
Posts: 223
Location: Leander, TX

PostPosted: Tue Mar 15, 2016 6:44 pm    Post subject: 912 muffler heat shield Reply with quote

Mine just has some very thick aluminum foil or sheet glued on the blanket near the muffler and exhaust. 1991 Kitfox 3 912 1100 hrs.

Pete

Quote:
On Mar 15, 2016, at 9:26 PM, clemwehner <clemwehner(at)sbcglobal.net> wrote:



Has anyone found need for a heat shield between the 912UL muffler and the firewall blanket on a KF IV?

I've just run my engine for the first time after 24 years of building and got to thinking about the heat from the muffler.

thanks guys,
Clem Wehner
Lawton, OK
KFIV-912UL




Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=453795#453795












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Pete
Leander, TX
Kitfox III, 912ul, Grove
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peteohms



Joined: 31 Oct 2007
Posts: 223
Location: Leander, TX

PostPosted: Tue Mar 15, 2016 6:49 pm    Post subject: 912 muffler heat shield Reply with quote

Here's a picture.

Quote:
On Mar 15, 2016, at 9:44 PM, Pete Christensen <pchristensen10(at)austin.rr.com> wrote:



Mine just has some very thick aluminum foil or sheet glued on the blanket near the muffler and exhaust. 1991 Kitfox 3 912 1100 hrs.

Pete

> On Mar 15, 2016, at 9:26 PM, clemwehner <clemwehner(at)sbcglobal.net> wrote:
>
>
>
> Has anyone found need for a heat shield between the 912UL muffler and the firewall blanket on a KF IV?
>
> I've just run my engine for the first time after 24 years of building and got to thinking about the heat from the muffler.
>
> thanks guys,
> Clem Wehner
> Lawton, OK
> KFIV-912UL
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=453795#453795
>
>
>
>
>
>
>
>
>
>


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Pete
Leander, TX
Kitfox III, 912ul, Grove
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Guy Buchanan
Site Admin


Joined: 16 Jul 2006
Posts: 1193
Location: Ramona, CA

PostPosted: Tue Mar 15, 2016 8:19 pm    Post subject: 912 muffler heat shield Reply with quote

I made mine out of aluminum. The best picture's here.
(https://b-and-n.smugmug.com/Flying/Kitfox/i-pt2sjSB/A) There's some
other views in the folder, though none as good. I don't know if it's
necessary. I did it to keep heat off the radiator tubes that run
vertically on centerline between the exhaust and firewall.

Guy Buchanan
Ramona, CA
Kitfox IV-1200 / 912-S / Warp 3cs / 500 hrs. flying again.
Now a glider pilot, too.

On 3/15/2016 7:26 PM, clemwehner wrote:
Quote:


Has anyone found need for a heat shield between the 912UL muffler and the firewall blanket on a KF IV?

I've just run my engine for the first time after 24 years of building and got to thinking about the heat from the muffler.

thanks guys,
Clem Wehner
Lawton, OK
KFIV-912UL


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Guy Buchanan
K-IV 1200 / 912Uls / Warp / 500 hours and flying again.
Now a glider pilot too.
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clint_bazzill(at)hotmail.
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PostPosted: Wed Mar 16, 2016 8:33 pm    Post subject: 912 muffler heat shield Reply with quote

Not me, Kitfox IV 1900 hours.

Quote:
Subject: 912 muffler heat shield
From: clemwehner(at)sbcglobal.net
Date: Tue, 15 Mar 2016 19:26:59 -0700
To: kitfox-list(at)matronics.com

--> Kitfox-List message posted by: "clemwehner" <clemwehner(at)sbcglobal.net>

Has anyone found need for a heat shield between the 912UL muffler and the firewall blanket on a KF IV?

I've just run my engine for the first time after 24 years of building and got to thinking about the heat from the muffler.

thanks guys,
Clem Wehner
Lawton, OK
KFIV-912UL




Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=453795#453795




<br=====================
_===================





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peteohms



Joined: 31 Oct 2007
Posts: 223
Location: Leander, TX

PostPosted: Thu Mar 17, 2016 5:05 am    Post subject: 912 muffler heat shield Reply with quote

[img]cid:15985344-A332-4825-9BDC-8666E51F147F[/img]

Maybe this would work.
Pete

On Mar 16, 2016, at 11:32 PM, Clint Bazzill <clint_bazzill(at)hotmail.com (clint_bazzill(at)hotmail.com)> wrote:
Quote:
Not me, Kitfox IV 1900 hours.

Quote:
Subject: Kitfox-List: 912 muffler heat shield
From: clemwehner(at)sbcglobal.net (clemwehner(at)sbcglobal.net)
Date: Tue, 15 Mar 2016 19:26:59 -0700
To: kitfox-list(at)matronics.com (kitfox-list(at)matronics.com)

--> Kitfox-List message posted by: "clemwehner" <clemwehner(at)sbcglobal.net (clemwehner(at)sbcglobal.net)>

Has anyone found need for a heat shield between the 912UL muffler and the firewall blanket on a KF IV?

I've just run my engine for the first time after 24 years of building and got to thinking about the heat from the muffler.

thanks guys,
Clem Wehner
Lawton, OK
KFIV-912UL




Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=453795#453795




<br=====================
_===================



</br=====================






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Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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image1.PNG
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image1.PNG



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Pete
Leander, TX
Kitfox III, 912ul, Grove
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KeysFox



Joined: 05 Jan 2009
Posts: 137

PostPosted: Sat Mar 19, 2016 5:08 am    Post subject: 912 muffler heat shield Reply with quote

Guy,

I made the mistake of opening the link to the photo of the FWF
installation in your last post. All I can do is sigh and wish I had your
skills and attention to detail.

WHAT A BEAUTIFUL INSTALLATION!

However, questions come to mind.

1. Is the oil cooler and mount a stock Kitfox or Rotax assembly. If so can
you give me P/N or help identifying it to get it ordered? I have a model
IV with round cowl around an 80 hp 912 and installed a smaller cooler
obtained from Kitfox about 10 years ago that lets temps get too high on
long hot climb outs from Utah canyons so I need more cooling at those
times.

2. I would like to replace the flexible rubber hose coolant line that goes
down the left side of my fire wall, then under the cabin floor to the
radiator because it is too close to the exhaust and the soft lines tend
not to stay in place as well as metal would. So where did you get or have
your chromed coolant lines made? Your guidance would be appreciated.

I better quit looking at your photo. Being so envious of another man's
work is depressing.

BJ
Kitfox IV 1050, 912 80, Warp Drive

2. >
Quote:

I made mine out of aluminum. The best picture's here.
(https://b-and-n.smugmug.com/Flying/Kitfox/i-pt2sjSB/A) There's some
other views in the folder, though none as good. I don't know if it's
necessary. I did it to keep heat off the radiator tubes that run
vertically on centerline between the exhaust and firewall.

Guy Buchanan
Ramona, CA
Kitfox IV-1200 / 912-S / Warp 3cs / 500 hrs. flying again.
Now a glider pilot, too.

On 3/15/2016 7:26 PM, clemwehner wrote:
>
> <clemwehner(at)sbcglobal.net>
>
> Has anyone found need for a heat shield between the 912UL muffler and
> the firewall blanket on a KF IV?
>
> I've just run my engine for the first time after 24 years of building
> and got to thinking about the heat from the muffler.
>
> thanks guys,
> Clem Wehner
> Lawton, OK
> KFIV-912UL




- The Matronics Kitfox-List Email Forum -
 

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B Jones
N154K
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Guy Buchanan
Site Admin


Joined: 16 Jul 2006
Posts: 1193
Location: Ramona, CA

PostPosted: Sun Mar 20, 2016 9:00 am    Post subject: 912 muffler heat shield Reply with quote

BJ,
    You're too kind. Thanks for the nice words. Re:
  1. The oil cooler is an Earl's 21608AERL 16 Row Oil Cooler -8 AN Black I bought off Amazon. It's much larger than is typically used on 912's because of my southwest location. (Lots 'o hot.) The mount was custom, as was the cowl mod. I'm guessing Kitfox LLC can sell you a cooler and mount, but the catalog's ambiguous as to whether a mount is included. Give them a call. Later I made a Van's style shutter over the front which seems to work OK to help raise oil temperatures in the cold. I don't know if it blocks too much in the summer yet, though.
  2. The metal coolant lines were all custom, starting with a bunch of 1" mandrel bent aluminum elbows, (see this and that,) combined with some 1" straight that I had a local guy weld together after I did all the cutting and matching. I then beaded them and had them chromed locally. Unfortunately it was rather (shall we say hideously) expensive, mostly because I didn't feel comfortable welding aluminum. (OK with steel.) But I figured they'd last nearly forever and I definitely preferred them to soft tubing.


Guy Buchanan
Ramona, CA
Kitfox IV-1200 / 912-S / Warp 3cs / 500 hrs. flying again.
Now a glider pilot, too.


- The Matronics Kitfox-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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Guy Buchanan
K-IV 1200 / 912Uls / Warp / 500 hours and flying again.
Now a glider pilot too.
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