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Tank fix

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seiders(at)bellsouth.net
Guest

Posted: Mon Mar 12, 2007 5:00 am Post subject: Tank fix

At the risk of opening an old wound what, if anything ever happened 

to the tank pickup tube fix fuss that was hotly discussed a year or two ago?

I have the wings off of my 6A for a repair to one of them (hit bush 

with leading edge) and recall the discussion. To gain access to tank 

interior I removed only the sending unit. After checking my pickup 

tube nuts and finding them tight after almost 500 hrs I am thinking 

about applying a small dab of pro seal to the joint and avoiding the 

really unpleasant task of removing the tank cover plates as well. I 

am reasonably satisfied with this as a fix. Would appreciate the 

thoughts of y'all out there. Those that did, and those that didn't, 

and reasoning.

Thanks.

Dick

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panamared5(at)brier.net
Guest

Posted: Mon Mar 12, 2007 9:14 am Post subject: Tank fix

 	  Quote: 	
		  At the risk of opening an old wound what, if anything ever happened to the 

tank pickup tube fix fuss that was hotly discussed a year or two ago?

  Would appreciate the thoughts of y'all out there. Those that did, and 

 those that didn't, and reasoning.


	


I did it.  Both tanks, one had the flop tube, which was the hardest to 

do.  It took on average of 12 hours each tank.  I know some reported that 

it is a 45 min job per tank.  But it took that long for me to drain the 

tanks?  When I figured the time, that includes getting the tools, supplies 

and parts necessary to actually start the operation.   I took off the tanks 

to do it and it was still frustrating, I would not do it with the tanks 

still on the aircraft (but messing up the paint job was not a concern of mine).



Also this is a good opportunity to induce a leak if you don't already have 

one, or maybe to have some loose proseal end up in the fuel filter (ask me 

how I know).  The solution could be worse than the problem.



Ten years ago when I built my tanks, both the list and Vans 

cautioned:  follow the plans exactly as far as the fuel system is 

concerned.  I did and then a few years later Vans state, if you followed 

the plans you did it wrong??!?



As you can see Vans will change their advice based upon circumstances and 

not necessarily based upon good engineering data.  I considered this fix a 

real waste of time, unless of course, it is your fuel pickup that falls 

off.  This is a 15 minute fix while building the tanks and should be done 

at that time.



This is a case much like the Lycoming oil pump.  Some will argue that the 

AD replacement was as bad or worse than the original.  But those who had a 

pump failure probably wished they had replaced them!



I offer no advice, it is your butt in the aircraft.  Do what is right for you.



Bob

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Leland Collins

Joined: 10 Jan 2006
Posts: 21

Posted: Mon Mar 12, 2007 9:38 am Post subject: Re: Tank fix

Basically, I had the same experience as Bob. Days to remove the tanks and to the fix the problem on an RV9. My fuel tank access covers were gasketted and Prosealed on. I carefully dried the tanks and used heat and prying to remove the covers. Vacuumed Proseal residue from tanks. Even so, I have continued to get a small amount of particulate when sampling the fuel drains, but only a very small amount on the Gascolator screen. My pickup tubes were secure, but the flares on the tubes were horribly scratched. My wings and tanks were Quickbuilds. I bought Van's pre-drilled and "screened" pickup replacement tubes. The level of scratching on the flares of the replacements was better but still unacceptable. 

Leland

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_________________
Leland
RV9A
N137LC

seiders(at)bellsouth.net
Guest

Posted: Tue Mar 13, 2007 5:34 am Post subject: Tank fix

Leland and Bob, thanks for the input. I prosealed the flairnuts to 

the clip angles yesterday. I am satisfied with the fix.

Dick

At 01:38 PM 3/12/2007, you wrote:



 	  Quote: 	
		  



Basically, I had the same experience as Bob. Days to remove the 

tanks and to the fix the problem on an RV9. My fuel tank access 

covers were gasketted and Prosealed on. I carefully dried the tanks 

and used heat and prying to remove the covers. Vacuumed Proseal 

residue from tanks. Even so, I have continued to get a small amount 

of particulate when sampling the fuel drains, but only a very small 

amount on the Gascolator screen. My pickup tubes were secure, but 

the flares on the tubes were horribly scratched. My wings and tanks 

were Quickbuilds. I bought Van's pre-drilled and "screened" pickup 

replacement tubes. The level of scratching on the flares of the 

replacements was better but still unacceptable.

Leland



--------

Leland

RV9A

N137LC





Read this topic online here:



http://forums.matronics.com/viewtopic.php?p=100081#100081

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Hopperdhh(at)aol.com
Guest

Posted: Tue Mar 13, 2007 6:01 am Post subject: Tank fix

VACUUMED?  That thought crossed my mind, but then I thought of my shop vac 

loading up with gasoline vapors.  There are sparks in that motor, and some air 

(fuel vapor!) is drawn up to cool it, at least that's how mine works.

 

Dan Hopper

RV-7A

 

 

 

In a message dated 3/12/2007 12:45:51 PM Eastern Standard Time, 

federigo(at)pacbell.net writes:




Basically, I had the same experience as Bob. Days to remove the tanks and to 

the fix the problem on an RV9. My fuel tank access covers were gasketted and 

Prosealed on. I carefully dried the tanks and used heat and prying to remove 

the covers. Vacuumed Proseal residue from tanks. Even so, I have continued to 

get a small amount of particulate when sampling the fuel drains, but only a very 

small amount on the Gascolator screen. My pickup tubes were secure, but the 

flares on the tubes were horribly scratched. My wings and tanks were 

Quickbuilds. I bought Van's pre-drilled and "screened" pickup replacement tubes. The 

level of scratching on the flares of the replacements was better but still 

unacceptable. 

Leland



--------

Leland

RV9A

N137LC

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email to everyone.  Find out more about what's free from AOL at 

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jpleasants(at)bellsouth.n
Guest

Posted: Tue Mar 13, 2007 6:21 am Post subject: Tank fix

Dan, that's what makes homebuilding so exciting!



Jim Pleasants



Do not archieve

---

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recapen(at)earthlink.net
Guest

Posted: Tue Mar 13, 2007 6:36 am Post subject: Tank fix

Didn't I see that on Mythbusters.....?



--

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