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Re-Kreem Fuel Tanks

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aviateer

Joined: 08 Aug 2008
Posts: 23

Posted: Wed Oct 21, 2009 6:36 pm Post subject: Re-Kreem Fuel Tanks

Hello Paul,

  

 You say you are flying again. What type of fuel lines did you install on your newly Kreemed fuel tanks?

  

 I have been experiencing the same thing. My engine started to run rough about four years ago. I just completed the re-slosh with Kreem and I bought some fuel line at NAPA auto stores. It is black rubber gas line. I would expect that ethanol and any other auto fuel will not harm this fuel line. I do not know about 100LL however. I sometimes fuel up with 100LL during cross country flights.

   

  

 Thanks,

  

  

 Kirk Martenson

  

 Classic IV 912UL

  [quote][b]

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Lynn Matteson

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

Posted: Wed Oct 21, 2009 7:52 pm Post subject: Re-Kreem Fuel Tanks

If you bought the SAE 30R7 fuel line, you can rest assured that 100LL  

will not harm it. I have over 800 hours running this type of  

line...in some cases, the SAME line for all of those 800 hours, and  

no signs of any harm to the lines, some of which I changed just last  

week. And NO sign of the Kreeme flaking, peeling, dissolving, etc.  

And that's after approximately 3200 gallons passing through those tanks.



I fly an airplane, and when I DO decide to put fuel into this  

airplane, is it 99.999% always airplane fuel.....that's one of the  

Old Wives Tales that I pay attention to. 



Lynn Matteson

Kitfox IV Speedster, taildragger

Jabiru 2200, #2062, 801.4 hrs

Countdown to 1000 hrs--199 to go

Sensenich 62"x46" Wood prop

Electroair direct-fire ignition system

Rotec TBI-40 injection

Status: flying (and learning)

On Oct 21, 2009, at 10:33 PM, Kitfoxkirk wrote:



 	  Quote: 	
		   Hello Paul,



 You say you are flying again. What type of fuel lines did you  

 install on your newly Kreemed fuel tanks?



 I have been experiencing the same thing. My engine started to run  

 rough about four years ago. I just completed the re-slosh with  

 Kreem and I bought some fuel line at NAPA auto stores. It is black  

 rubber gas line. I would expect that ethanol and any other auto  

 fuel will not harm this fuel line. I do not know about 100LL  

 however. I sometimes fuel up with 100LL during cross country flights.

 Thanks,

 Kirk Martenson



 Classic IV 912UL

 www.matronics.com/contribution _- 

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_________________
Lynn
Kitfox IV-Jabiru 2200
N369LM

pchristensen10(at)austin.
Guest

Posted: Thu Oct 22, 2009 4:57 am Post subject: Re-Kreem Fuel Tanks

If you Kreem your fuel tanks how do you protect the  various holes like site gauge etc. from being plugged.

  

  

 Pete

 KFIII, 912

  

 [quote]   ---

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pwmac(at)sisna.com
Guest

Posted: Thu Oct 22, 2009 5:45 am Post subject: Re-Kreem Fuel Tanks

Take out all of them and replace with pipe plugs.

  Then put them back in with your original sealant.

 Paul

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

 At 05:52 AM 10/22/2009, you wrote:

 [quote]If you Kreem your fuel tanks how do you protect the various holes like site gauge etc. from being plugged.

  

  

 Pete

 KFIII, 912

  

   ---

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paul perry

Joined: 11 Jun 2008
Posts: 36

Posted: Fri Oct 23, 2009 8:18 pm Post subject: Re: Re-Kreem Fuel Tanks

Hi Kirk...yes I'm flying again and I bought the R-9 fuel line, but like Lynn says I'm sure the R-7 type would be just fine. I had read a couple of posts recommending the R-9 version so I went with that...I think the diff is the R-9 is for some types of fuel injection systems and maybe more resistant to alcohol, but I'm sure there are others who could say for sure. I went with poly-urethane tubing from "Spruce" for the vent line and the sight tubes and changed out the "compression type" fittings on the sight tubes to nylon tube fittings 1/4Tx1/8P that AS&S recommends for gravity fed fuel lines. The good news with all this is I've had no more sticking valve problems since getting all this done. I know I had exposed fiberglass in the tanks from where the kreem was coming off, but there is no way I can say for sure that the resin was being dissolved or if it was that it was the ethanol or some other additive in the auto gas that did it...I suppose it could have been the flaking kreem itself..no way to know for sure...but I do know that  when I eliminated the fuel tanks and ran the engine from a temporary marine tank setup the problem began to clear up after the first 30 min run. I've now flown for about 4 hours on the re-sloshed tanks with 100LL and for the last several flights the engine has ran completely smooth on initial startup(sticking valve symptoms gone).

I recently ordered decalin from AS&S and plan on continuing with the 100LL.   Good luck with your return to flight!!   Paul Perry

                                                                    KF IV Speedster

                                                                    912UL

Oh, I just installed an Ivoprop Ultralight quick adjust 68" and am loving it....same cruise and better climb than the GSC(also 68")  and I might go another 1/2-1 turn adj  and get even better cruise.

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