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wing tanks and fuel lines Classic 4

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l.morris(at)tx.rr.com
Guest

Posted: Mon May 07, 2007 8:02 am Post subject: wing tanks and fuel lines Classic 4

I have read in Kitfox Builder of many problems with the fiberglass tanks that have been sloshed with Kreem and fuel lines that are actually hydraulic lines. Is this just with autogas use? Should I get rid of them or use avgas only or try to find plastic tanks and gas fuel lines?  

       [quote][b]

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dosmythe(at)cox.net
Guest

Posted: Mon May 07, 2007 11:09 am Post subject: wing tanks and fuel lines Classic 4

Two different problems.   The basic Kreem problem was due to the product cracking and coming loose in the  tanks.  This caused several owners to be forced into cleaning the tanks and  re-sloshing.  Do you have Kreem in your tanks?

     The old fuel line problem was  when Skystar supplied MIL-6000 black rubber hose in the kit.  Auto fuel  from some locations around the country would cause the MIL-6000 to swell  shut.  I'm almost certain that the new Kitfox folks do not supply that line  anymore.  If you have MIL-6000, simply throw it in the trash can and  replace with auto hose  of either SAE-R7 or SAE -R9 (fuel  injection).  I use clear Polyurethane from AC Spruce and it works just  fine.  The auto hose or Poly will work equally well with 100LL.   

     As far as going to plastic  tanks, I think the jury is still out on what is the best choice if a replacement  is necessary.  If I "HAD" to change tanks right now I don't know what I  would choose.

  

 Don Smythe

Classic IV w/582

Newport News,  Va.

  

  

  

 [quote]   ---

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avtar412

Joined: 15 Nov 2006
Posts: 22
Location: New Zealand

Posted: Tue May 08, 2007 12:59 am Post subject: Re: wing tanks and fuel lines Classic 4

Re the Kreem, I think most of the problem was not removing the waxy coating on the inside of the tanks. I used MEK to degrease before applying the Kreem and no sign of it lifting. John A. NZ

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Lynn Matteson

Joined: 10 Jan 2006
Posts: 2778
Location: Grass Lake, Michigan

Posted: Tue May 08, 2007 5:32 am Post subject: wing tanks and fuel lines Classic 4

I've got 275+ hours on my Kreem'd tanks...no problems yet...and I'm  

using automotive SAE R7 or R9, can't recall which. Per Skystar's  

instructions, I thoroughly cleaned the tanks with acetone, then  

sloshed the tanks with Kreem. On my can of Kreem, the usual  

disclaimer can be found:  "Not for use in aircraft...."



Lynn Matteson

Grass Lake, Michigan

Kitfox IV Speedster  w/Jabiru 2200

flying w/275+ hrs

do not archive



On May 7, 2007, at 11:51 AM, Leon Morris wrote:



 	  Quote: 	
		   I have read in Kitfox Builder of many problems with the fiberglass  

 tanks that have been sloshed with Kreem and fuel lines that are  

 actually hydraulic lines. Is this just with autogas use? Should I  

 get rid of them or use avgas only or try to find plastic tanks and  

 gas fuel lines?



 http://www.matronics.com/Navigator?Kitfox-List_- 

 ============================================================ _- 

 forums.matronics.com_- 

 ============================================================

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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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_________________
Lynn
Kitfox IV-Jabiru 2200
N369LM

l.morris(at)tx.rr.com
Guest

Posted: Tue May 08, 2007 6:49 am Post subject: wing tanks and fuel lines Classic 4

Thanks for the  info.I do have Kreem in the tanks and they do look good-no cracking.I thought the hose were the yellow Tygon that were the bad one so thanks for the.I found all the past articles on the subjects after I sent this--Leon

---- Don Smythe <dosmythe(at)cox.net> wrote: 

[quote]     Two different problems.  The basic Kreem problem was due to the product cracking and coming loose in the tanks.  This caused several owners to be forced into cleaning the tanks and re-sloshing.  Do you have Kreem in your tanks?

     The old fuel line problem was when Skystar supplied MIL-6000 black rubber hose in the kit.  Auto fuel from some locations around the country would cause the MIL-6000 to swell shut.  I'm almost certain that the new Kitfox folks do not supply that line anymore.  If you have MIL-6000, simply throw it in the trash can and replace with auto hose  of either SAE-R7 or SAE -R9 (fuel injection).  I use clear Polyurethane from AC Spruce and it works just fine.  The auto hose or Poly will work equally well with 100LL.  

     As far as going to plastic tanks, I think the jury is still out on what is the best choice if a replacement is necessary.  If I "HAD" to change tanks right now I don't know what I would choose.

 

 Don Smythe

 Classic IV w/582

 Newport News, Va.

 

 

 

   ---

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l.morris(at)tx.rr.com
Guest

Posted: Tue May 08, 2007 7:12 am Post subject: wing tanks and fuel lines Classic 4

Thanks for the info--found alll the old articles after I sent the E-mail.I will be checking out the Jabiru 2200 next.--Leon  

---- Lynn Matteson <lynnmatt(at)jps.net> wrote: 

 	  Quote: 	
		   

 

 I've got 275+ hours on my Kreem'd tanks...no problems yet...and I'm  

 using automotive SAE R7 or R9, can't recall which. Per Skystar's  

 instructions, I thoroughly cleaned the tanks with acetone, then  

 sloshed the tanks with Kreem. On my can of Kreem, the usual  

 disclaimer can be found:  "Not for use in aircraft...."

 

 Lynn Matteson

 Grass Lake, Michigan

 Kitfox IV Speedster  w/Jabiru 2200

 flying w/275+ hrs

 do not archive

 

 On May 7, 2007, at 11:51 AM, Leon Morris wrote:

 

 > I have read in Kitfox Builder of many problems with the fiberglass  

 > tanks that have been sloshed with Kreem and fuel lines that are  

 > actually hydraulic lines. Is this just with autogas use? Should I  

 > get rid of them or use avgas only or try to find plastic tanks and  

 > gas fuel lines?

 >

 > http://www.matronics.com/Navigator?Kitfox-List_- 

 > ============================================================ _- 

 > forums.matronics.com_- 

 > ============================================================

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l.morris(at)tx.rr.com
Guest

Posted: Tue May 08, 2007 7:16 am Post subject: wing tanks and fuel lines Classic 4

Thanks,I appreciate the info.All the articles have been a real help--Leon

---- avtar412 <janderson412(at)hotmail.com> wrote: 

 	  Quote: 	
		   

 

 Re the Kreem, I think most of the problem was not removing the waxy coating on the inside of the tanks. I used MEK to degrease before applying the Kreem and no sign of it lifting. John A. NZ

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=111527#111527

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paul.kates(at)pathfinderl
Guest

Posted: Tue May 08, 2007 4:26 pm Post subject: wing tanks and fuel lines Classic 4

Another problem to consider is ethanol in auto fuel.  Ethanol will disolve some sloshing compounds and will also swell the rubber on many essential components such as fuel lines and older style rubber tipped float valves on Bing carbs.  Here in Texas the State mandates that all auto fuel be at least 10% ethanol.  The only other source for straight auto fuel in Texas is marine fuel.



________________________________



From: owner-kitfox-list-server(at)matronics.com on behalf of Lynn Matteson

Sent: Tue 5/8/2007 8:33 AM

To: kitfox-list(at)matronics.com

Subject: Re: wing tanks and fuel lines Classic 4






I've got 275+ hours on my Kreem'd tanks...no problems yet...and I'm 

using automotive SAE R7 or R9, can't recall which. Per Skystar's 

instructions, I thoroughly cleaned the tanks with acetone, then 

sloshed the tanks with Kreem. On my can of Kreem, the usual 

disclaimer can be found:  "Not for use in aircraft...."



Lynn Matteson

Grass Lake, Michigan

Kitfox IV Speedster  w/Jabiru 2200

flying w/275+ hrs

do not archive



On May 7, 2007, at 11:51 AM, Leon Morris wrote:



 	  Quote: 	
		   I have read in Kitfox Builder of many problems with the fiberglass 

 tanks that have been sloshed with Kreem and fuel lines that are 

 actually hydraulic lines. Is this just with autogas use? Should I 

 get rid of them or use avgas only or try to find plastic tanks and 

 gas fuel lines?



 http://www.matronics.com/Navigator?Kitfox-List_-

 ========== _-

 forums.matronics.com_-

 ==========

- 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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Lynn Matteson

Joined: 10 Jan 2006
Posts: 2778
Location: Grass Lake, Michigan

Posted: Tue May 08, 2007 5:45 pm Post subject: wing tanks and fuel lines Classic 4

Except for about 3 gallons of mogas in an emergency, I've stuck to  

100LL for all of the life of my Jabiru engine. They allow mogas after  

50 hours, but this means having to deal with lugging gas at some  

airports, so I'd rather use the 100LL and be done with it.



Lynn Matteson

Grass Lake, Michigan

Kitfox IV Speedster  w/Jabiru 2200

flying w/275+ hrs



On May 8, 2007, at 8:21 PM, Paul Kates wrote:



 	  Quote: 	
		   Another problem to consider is ethanol in auto fuel.  Ethanol will  

 disolve some sloshing compounds and will also swell the rubber on  

 many essential components such as fuel lines and older style rubber  

 tipped float valves on Bing carbs.  Here in Texas the State  

 mandates that all auto fuel be at least 10% ethanol.  The only  

 other source for straight auto fuel in Texas is marine fuel.



 ________________________________



 From: owner-kitfox-list-server(at)matronics.com on behalf of Lynn  

 Matteson

 Sent: Tue 5/8/2007 8:33 AM

 To: kitfox-list(at)matronics.com

 Subject: Re: wing tanks and fuel lines Classic 4



 



 I've got 275+ hours on my Kreem'd tanks...no problems yet...and I'm

 using automotive SAE R7 or R9, can't recall which. Per Skystar's

 instructions, I thoroughly cleaned the tanks with acetone, then

 sloshed the tanks with Kreem. On my can of Kreem, the usual

 disclaimer can be found:  "Not for use in aircraft...."



 Lynn Matteson

 Grass Lake, Michigan

 Kitfox IV Speedster  w/Jabiru 2200

 flying w/275+ hrs

- 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:

http://www.matronics.com/Navigator?Kitfox-List

_________________
Lynn
Kitfox IV-Jabiru 2200
N369LM

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