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QB tanks

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DAVELEIKAM(at)wi.rr.com
Guest

Posted: Thu Jun 28, 2007 8:42 pm Post subject: QB tanks

So far so good.  Two QB tanks tested, no  leaks, never took them off the wings.  The final test will be to fill them  with fuel for engine testing and flight.  Hopefully  they remain sound.  

 Just thought I'd let ya all know.

  

 By the way,  I simply installed the fuel  senders temporarily for the tests with the included gaskets, no pro-seal, and  they did not leak.  Must you use pro-seal for install, or is this just a  prudent practice?  I do plan on using the stuff, but the gaskets seem to  work well on their own.

  

 Dave Leikam

 40496 

 About to start putting the guts and wires in my  wings.

  

  

   [quote][b]

VHMUM(at)bigpond.com
Guest

Posted: Thu Jun 28, 2007 11:11 pm Post subject: QB tanks

Dave how did you test them ?

  

 Chris

 [quote]   ---

AirMike

Joined: 27 Feb 2007
Posts: 514
Location: Nevada

Posted: Fri Jun 29, 2007 3:21 am Post subject: QB tanks testing

Yes - what was your leak test proceedure ???

_________________
See you OSH '18
Q/B - sold.

jesse(at)saintaviation.co
Guest

Posted: Fri Jun 29, 2007 4:03 am Post subject: QB tanks

Dave,  

   

Some people are leaving out the gaskets completely and just using proseal and others are going the other extreme, using no proseal and just the gaskets.  Either way has benefits.  With just proseal, you will probably go longer without leaks, but if/when it becomes time to replace the senders, it will be more work to do so.  Using just the gaskets makes it much easier to change the senders, but the rubber will most likely dry out and crack and give you leaks sometime down the road.  Many are using the gaskets and putting anywhere from a little to a lot of proseal around them.  We have started just using the gaskets after putting a little proseal around the nutplates inside the tank.  I just tested a set of tanks and at first test there was a leak around one of the screws on one tank that was fixed by a quarter turn with a screwdriver.  Maybe a good combination if you are worried would be just the gaskets and then a bead around the outside of the gasket with proseal, and maybe a little proseal around the screws (but not on the head).  

     

Jesse Saint  

Saint Aviation, Inc.  

jesse(at)saintaviation.com (jesse(at)saintaviation.com)  

www.saintaviation.com  

Cell: 352-427-0285  

Fax: 815-377-3694  

        

  

From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Dave Leikam

 Sent: Friday, June 29, 2007 1:43 AM

 To: RV-10 matronics

 Subject: QB tanks  

  

     

So far so good.  Two QB tanks tested, no leaks, never took them off the wings.  The final test will be to fill them with fuel for engine testing and flight.  Hopefully they remain sound.    

    

Just thought I'd let ya all know.  

    

   

    

By the way,  I simply installed the fuel senders temporarily for the tests with the included gaskets, no pro-seal, and they did not leak.  Must you use pro-seal for install, or is this just a prudent practice?  I do plan on using the stuff, but the gaskets seem to work well on their own.  

    

   

    

Dave Leikam  

    

40496   

    

About to start putting the guts and wires in my wings.  

    

   

    

   

  [quote]   [b]

jwt(at)roadmapscoaching.c
Guest

Posted: Fri Jun 29, 2007 4:56 am Post subject: QB tanks

Jesse,

  

 I used the gaskets with  Fuel Lube. I have tested the tanks (even removed them to test the back side),  and they test ok. I used the balloon and soapy water method. Do you see any  potential problems with the gasket/Fuel Lube approach?

  

  John Testement

jwt(at)roadmapscoaching.com (jwt(at)roadmapscoaching.com)

40321

 Richmond, VA

Paint prep and LOTS of misc  stuff

 do not archive

   From: owner-rv10-list-server(at)matronics.com  [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Jesse  Saint

Sent: Friday, June 29, 2007 8:03 AM

To:  rv10-list(at)matronics.com

Subject: RE: QB  tanks

 

  

Dave, 

  

Some people are leaving  out the gaskets completely and just using proseal and others are going the other  extreme, using no proseal and just the gaskets.  Either way has  benefits.  With just proseal, you will probably go longer without leaks,  but if/when it becomes time to replace the senders, it will be more work to do  so.  Using just the gaskets makes it much easier to change the senders, but  the rubber will most likely dry out and crack and give you leaks sometime down  the road.  Many are using the gaskets and putting anywhere from a little to  a lot of proseal around them.  We have started just using the gaskets after  putting a little proseal around the nutplates inside the tank.  I just  tested a set of tanks and at first test there was a leak around one of the  screws on one tank that was fixed by a quarter turn with a screwdriver.   Maybe a good combination if you are worried would be just the gaskets and then a  bead around the outside of the gasket with proseal, and maybe a little proseal  around the screws (but not on the head). 

   

Jesse  Saint 

Saint Aviation,  Inc. 

jesse(at)saintaviation.com (jesse(at)saintaviation.com) 

www.saintaviation.com 

Cell:  352-427-0285 

Fax:  815-377-3694

    

 

  6/28/2007 5:57 PM

     [quote][b]

jesse(at)saintaviation.co
Guest

Posted: Fri Jun 29, 2007 5:27 am Post subject: QB tanks

Did you use the lube on the threads of the screws or just on the face of the gasket?  I can’t say that I see any problem with it, although I am certainly no expert on Fuel Lube.  The main problem with just using the gasket, as I understand it, is that the rubber can dry out and crack.  I don’t know the affect of fuel lube on the rubber.  Others would be much more qualified to answer this.  

   

Do not archive  

     

Jesse Saint  

Saint Aviation, Inc.  

jesse(at)saintaviation.com (jesse(at)saintaviation.com)  

www.saintaviation.com  

Cell: 352-427-0285  

Fax: 815-377-3694  

        

  

From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of John Testement

 Sent: Friday, June 29, 2007 8:55 AM

 To: rv10-list(at)matronics.com

 Subject: RE: QB tanks  

  

   

Jesse,  

   

I used the gaskets with Fuel Lube. I have tested the tanks (even removed them to test the back side), and they test ok. I used the balloon and soapy water method. Do you see any potential problems with the gasket/Fuel Lube approach?  

   

John Testement

 jwt(at)roadmapscoaching.com (jwt(at)roadmapscoaching.com)

 40321  

Richmond,  VA

 Paint prep and LOTS of misc stuff  

do not archive  

       

  

From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Jesse Saint

 Sent: Friday, June 29, 2007 8:03 AM

 To: rv10-list(at)matronics.com

 Subject: RE: QB tanks  

Dave,  

   

Some people are leaving out the gaskets completely and just using proseal and others are going the other extreme, using no proseal and just the gaskets.  Either way has benefits.  With just proseal, you will probably go longer without leaks, but if/when it becomes time to replace the senders, it will be more work to do so.  Using just the gaskets makes it much easier to change the senders, but the rubber will most likely dry out and crack and give you leaks sometime down the road.  Many are using the gaskets and putting anywhere from a little to a lot of proseal around them.  We have started just using the gaskets after putting a little proseal around the nutplates inside the tank.  I just tested a set of tanks and at first test there was a leak around one of the screws on one tank that was fixed by a quarter turn with a screwdriver.  Maybe a good combination if you are worried would be just the gaskets and then a bead around the outside of the gasket with proseal, and maybe a little proseal around the screws (but not on the head).  

     

Jesse Saint  

Saint Aviation, Inc.  

jesse(at)saintaviation.com (jesse(at)saintaviation.com)  

www.saintaviation.com  

Cell: 352-427-0285  

Fax: 815-377-3694  

          

  

  

  



 6/28/2007 5:57 PM  [quote]   [b]

DAVELEIKAM(at)wi.rr.com
Guest

Posted: Fri Jun 29, 2007 6:40 am Post subject: QB tanks

I installed the senders as I stated, then installed  the quickdrain valves on the bottom of the wings.  Purchased a small brass  valve and necessary hardware from local store and installed that in the strainer  fitting.  I found a small rubber grommet and pushed that onto the vent  fitting.  Then put a balloon over the grommet and SLOWLY added  air from compressor turned way down to almost nothing through the open  valve.  Watched the balloon grow to about 14" dia.  Close  valve. (Ya think?!)  Sprayed dishsoap and water solution on fittings  and valve to be sure nothing was leaking and waited overnight.  Balloon  still at 14".  Sprayed soap on rivets just for grins and giggles, no  bubbles.  I am confident at this time there are no leaks.  Down the  road is another story, but I can't think of any more testing to do which would  identify any problem areas.

 I did at first have a small leak in the valve,  which I tightened and stopped the leak.  Also the balloon over the  vent fitting.  I just wrapped electrical tape around the neck tightly and  that stopped.  

 I know some have found leaks in their QB tanks,  but I really did not expect any.  I have found the QB kits so far  to be of very good quality and am guessing Van's must test them before  install.  On to the wing guts.

  

 Dave Leikam

 40496

 QB wing guts  

 [quote]   ---

DAVELEIKAM(at)wi.rr.com
Guest

Posted: Fri Jun 29, 2007 6:44 am Post subject: QB tanks

I did not use anything on the screws with the  gasket.  I know, I thought they may leak also but they did  not.

  

 Dave Leikam

 [quote]   ---

jwt(at)roadmapscoaching.c
Guest

Posted: Fri Jun 29, 2007 9:38 am Post subject: QB tanks

I just put the Fuel Lube  on the gasket, not the screws. We'll see if it keeps the gasket from  drying.

  

 John



   From: owner-rv10-list-server(at)matronics.com  [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Jesse  Saint

Sent: Friday, June 29, 2007 9:26 AM

To:  rv10-list(at)matronics.com

Subject: RE: QB  tanks

 

  

Did you use the lube on  the threads of the screws or just on the face of the gasket?  I can’t say  that I see any problem with it, although I am certainly no expert on Fuel  Lube.  The main problem with just using the gasket, as I understand it, is  that the rubber can dry out and crack.  I don’t know the affect of fuel  lube on the rubber.  Others would be much more qualified to answer  this. 

  

Do not  archive 

   

Jesse  Saint 

Saint Aviation,  Inc. 

jesse(at)saintaviation.com (jesse(at)saintaviation.com) 

www.saintaviation.com 

Cell:  352-427-0285 

Fax:  815-377-3694

    

 

From:  owner-rv10-list-server(at)matronics.com  [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of John Testement

Sent: Friday, June 29, 2007 8:55  AM

To: rv10-list(at)matronics.com

Subject: RE: QB  tanks

 

  

Jesse, 

  

I used the gaskets with Fuel Lube. I have  tested the tanks (even removed them to test the back side), and they test ok. I  used the balloon and soapy water method. Do you see any potential problems with  the gasket/Fuel Lube approach? 

  

John Testement

jwt(at)roadmapscoaching.com (jwt(at)roadmapscoaching.com)

40321 

Richmond, VA

Paint prep and LOTS of misc  stuff 

do not archive 

    

 

From:  owner-rv10-list-server(at)matronics.com  [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Jesse Saint

Sent: Friday, June 29, 2007 8:03  AM

To: rv10-list(at)matronics.com

Subject: RE: QB  tanks 

Dave, 

  

Some  people are leaving out the gaskets completely and just using proseal and others  are going the other extreme, using no proseal and just the gaskets.  Either  way has benefits.  With just proseal, you will probably go longer without  leaks, but if/when it becomes time to replace the senders, it will be more work  to do so.  Using just the gaskets makes it much easier to change the  senders, but the rubber will most likely dry out and crack and give you leaks  sometime down the road.  Many are using the gaskets and putting anywhere  from a little to a lot of proseal around them.  We have started just using  the gaskets after putting a little proseal around the nutplates inside the  tank.  I just tested a set of tanks and at first test there was a leak  around one of the screws on one tank that was fixed by a quarter turn with a  screwdriver.  Maybe a good combination if you are worried would be just the  gaskets and then a bead around the outside of the gasket with proseal, and maybe  a little proseal around the screws (but not on the  head). 

   

Jesse  Saint 

Saint  Aviation, Inc. 

jesse(at)saintaviation.com (jesse(at)saintaviation.com) 

www.saintaviation.com 

Cell:  352-427-0285 

Fax:  815-377-3694

     

 



6/28/2007 5:57  PM 	  Quote: 	
		    http://www.matronics.com/Navigator?RV10-List 	
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5No virus found in this incoming message.  size=2>Version: 7.5.476 /   

  6/28/2007 5:57 PM

     [quote][b]

MauleDriver(at)nc.rr.com
Guest

Posted: Fri Jun 29, 2007 11:22 am Post subject: QB tanks

I recently tested my tanks using the balloon and soap and water method.  

No leaks found.



I didn't have the nerve or knowledge to blow the balloon up to 14".  The 

warnings about not using too much pressure got my attention.  I just 

took up to where it the balloon starts to stretch if that makes any 

sense. How much pressure should be used here? how do you measure it? 

should I redo it and blow a balloon up to many inches?  Your 

thoughts/experience welcome.



I didn't use anything on the gasket but I intend to use fuel lube on 

both the gasket and the threads.  It appears to be what fuel lube if for 

- a non-drying, petrochemical resistant sealant for fittings that have 

fuel trying to leak out.  I guess pro-seal sounds like the samething 

except it would seem to get hard over time.



Bill "installing wires for autopilot servo and LED position lights in 

wings" Watson

John Testement wrote:

 	  Quote: 	
		   I just put the Fuel Lube on the gasket, not the screws. We'll see if 

 it keeps the gasket from drying.

  

 John



 ------------------------------------------------------------------------

 *From:* owner-rv10-list-server(at)matronics.com 

 [mailto:owner-rv10-list-server(at)matronics.com] *On Behalf Of *Jesse Saint

 *Sent:* Friday, June 29, 2007 9:26 AM

 *To:* rv10-list(at)matronics.com

 *Subject:* RE: QB tanks



 Did you use the lube on the threads of the screws or just on the face 

 of the gasket?  I can’t say that I see any problem with it, although I 

 am certainly no expert on Fuel Lube.  The main problem with just using 

 the gasket, as I understand it, is that the rubber can dry out and 

 crack.  I don’t know the affect of fuel lube on the rubber.  Others 

 would be much more qualified to answer this.



  



 Do not archive



  



 Jesse Saint



 Saint Aviation, Inc.



 jesse(at)saintaviation.com <mailto:jesse(at)saintaviation.com>



 www.saintaviation.com <http://www.saintaviation.com>



 Cell: 352-427-0285



 Fax: 815-377-3694



 ------------------------------------------------------------------------



 *From:* owner-rv10-list-server(at)matronics.com 

 [mailto:owner-rv10-list-server(at)matronics.com] *On Behalf Of *John 

 Testement

 *Sent:* Friday, June 29, 2007 8:55 AM

 *To:* rv10-list(at)matronics.com

 *Subject:* RE: QB tanks



  



 Jesse,



  



 I used the gaskets with Fuel Lube. I have tested the tanks (even 

 removed them to test the back side), and they test ok. I used the 

 balloon and soapy water method. Do you see any potential problems with 

 the gasket/Fuel Lube approach?



  



 John Testement

 jwt(at)roadmapscoaching.com <mailto:jwt(at)roadmapscoaching.com>

 40321



 Richmond, VA

 Paint prep and LOTS of misc stuff



 do not archive



  



 ------------------------------------------------------------------------



 *From:* owner-rv10-list-server(at)matronics.com 

 [mailto:owner-rv10-list-server(at)matronics.com] *On Behalf Of *Jesse Saint

 *Sent:* Friday, June 29, 2007 8:03 AM

 *To:* rv10-list(at)matronics.com

 *Subject:* RE: QB tanks



 Dave,



  



 Some people are leaving out the gaskets completely and just using 

 proseal and others are going the other extreme, using no proseal and 

 just the gaskets.  Either way has benefits.  With just proseal, you 

 will probably go longer without leaks, but if/when it becomes time to 

 replace the senders, it will be more work to do so.  Using just the 

 gaskets makes it much easier to change the senders, but the rubber 

 will most likely dry out and crack and give you leaks sometime down 

 the road.  Many are using the gaskets and putting anywhere from a 

 little to a lot of proseal around them.  We have started just using 

 the gaskets after putting a little proseal around the nutplates inside 

 the tank.  I just tested a set of tanks and at first test there was a 

 leak around one of the screws on one tank that was fixed by a quarter 

 turn with a screwdriver.  Maybe a good combination if you are worried 

 would be just the gaskets and then a bead around the outside of the 

 gasket with proseal, and maybe a little proseal around the screws (but 

 not on the head).



  



 Jesse Saint



 Saint Aviation, Inc.



 jesse(at)saintaviation.com <mailto:jesse(at)saintaviation.com>



 www.saintaviation.com <http://www.saintaviation.com>



 Cell: 352-427-0285



 Fax: 815-377-3694



 ------------------------------------------------------------------------

 6/28/2007 5:57 PM



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DAVELEIKAM(at)wi.rr.com
Guest

Posted: Fri Jun 29, 2007 8:47 pm Post subject: QB tanks

I blew the balloon up to what I thought would be easy to measure and detect 

shrinkage.  No special size or pressure.  I would think the pressure to 

inflate a balloon would not harm the tanks at all and the balloon would 

burst way before any damage would be done to the tank.  Now I know even a 

moderately small amount of vacuum could crush the tanks.  I believe sea 

level AP is about 14.5 psi?



Dave Leikam

40496

---

jesse(at)saintaviation.co
Guest

Posted: Fri Jun 29, 2007 9:13 pm Post subject: QB tanks

The size of the balloon can shrink or grow with temperature change.  I don't think the size of the balloon matters as much as it holding its pressure.  Just IMHO.  Also, a small balloon will pop before hitting 14".  Size doesn't matter much here, guys, as long as it is consistent.



Do not archive



Jesse Saint

Saint Aviation, Inc

jesse(at)saintaviation.com

www.saintaviation.com

352-427-0285



Leather interior kit for the RV-10 -

www.saintaviation.com/interior



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