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Advice about gas tanks in 601.

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ggower_99(at)yahoo.com
Guest

Posted: Tue Jun 16, 2009 4:18 pm Post subject: Advice about gas tanks in 601.

Hello 601 builders,

  

 I am ready to install the fuel senders in the 601 tanks...  Just I am holding a little, doing some thinking, about the chance of installing the senders on the top of the tank...  

  

 Two questions? 

 Someone had installed the senders on top of the tank in the 601 XL? Have photos?. 

  

 From some of you that have flying airplanes and that have the senders on the side.  The sealing is satisfactory? 

 I will hate to need to open the leading edge skin(s) to replace the sender or the gaskets... I think there is no way to reach it throught the 3 front ribs holes, to replace it...

  

 Thank you all in advance for the comments.

  

 Saludos

 Gary Gower.

 701 912S  

 Building 601 XL Jab 3300

 Fuselage almost ready,  tail surfaces ready, working on wings.

  

  

  

  



           [quote][b]

johnd

Joined: 09 Jun 2009
Posts: 27

Posted: Tue Jun 16, 2009 4:37 pm Post subject: Advice about gas tanks in 601.

Hi Gary,

 

 I installed my senders on the side per the plans. I first installed them with just the gasket and paper washers for the screws and they leaked around the screw holes. I removed them thu the lightening hole and the maintenance opening on the bottom of the wing and and reinstalled them with fuel lube sealant on the gasket and screws and haven't had a leak so far. I've got about 15 hours with no leaks...

 

 Good luck,

 John Davis

 N601JD

 

 Gary Gower wrote: [quote]                                 

 Hello 601 builders,

          

         I am ready to install the fuel senders in the 601 tanks...  Just I am holding a little, doing some thinking, about the chance of installing the senders on the top of the tank...  

          

         Two questions? 

         Someone had installed the senders on top of the tank in the 601 XL? Have photos?. 

          

         From some of you that have flying airplanes and that have the senders on the side.  The sealing is satisfactory? 

         I will hate to need to open the leading edge skin(s) to replace the sender or the gaskets... I think there is no way to reach it throught the 3 front ribs holes, to replace it...

          

         Thank you all in advance for the comments.

          

         Saludos

         Gary Gower.

         701 912S  

         Building 601 XL Jab 3300

         Fuselage almost ready,  tail surfaces ready, working on wings.

          

          

          

          

                           

    	  Quote: 	
		  



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 [b]

ashleyw(at)gvtc.com
Guest

Posted: Tue Jun 16, 2009 4:41 pm Post subject: Advice about gas tanks in 601.

Gary,

  

 I have the senders in the side per plans.  I  have had to reseal one of the screws a couple times.

 The paper washers that came with the sender appear  to work if installed once.  I took a sender out and the washers were  trashed.  My first attempt to seal the screws with EZ lube lasted about 6  months.  I now have some Permatex gasket maker on the screw and it appears  to be holding.

 It is actually very easy to get the sender in and  out of the wing thru the rib holes.

  

 Floyd Wilkes

 601XL

 [quote]   ---

cookwithgas

Joined: 06 Nov 2007
Posts: 159

Posted: Tue Jun 16, 2009 4:44 pm Post subject: Re: Advice about gas tanks in 601.

Gary:



Here is what I did:



http://www.cooknwithgas.com/5_30_04_Wingholes.JPG

http://www.cooknwithgas.com/3_04_03_Sender2.JPG

http://www.cooknwithgas.com/3_04_03_Sender.JPG

http://www.cooknwithgas.com/3_5_03_SenderParts.JPG

http://www.cooknwithgas.com/3_5_04_WingTank.JPG

http://www.cooknwithgas.com/3_7_04_Access.JPG



Scott Laughlin

601XL/Corvair

136 Hours

Zbagged 12 times

Last edited by cookwithgas on Tue Jun 16, 2009 4:50 pm; edited 1 time in total

larry(at)macsmachine.com
Guest

Posted: Tue Jun 16, 2009 5:12 pm Post subject: Advice about gas tanks in 601.

Hi Gary,

I have side mounted fuel senders in my tanks and the gaskets are very 

sound as provided. Top mounting is over kill and problematic for the 

leading edge tanks

and header.  I'd recommend you go with the side mount. I can see my tank 

sender, access it and remove it from the inboard rib nearest it without 

too much difficulty

but don't think that will ever happen.  Take time to install it 

correctly and you'll not have any problems.



http://www.macsmachine.com/images/leadedgetanks/full/sender-calibration-setup.gif

http://www.macsmachine.com/images/leadedgetanks/full/tankwired.gif

http://www.macsmachine.com/images/headertank/full/vdoinstall.gif

http://www.macsmachine.com/images/wing/inspectionpanels/full/inspectpnl.jpg



http://www.macsmachine.com/images/completion/full/airmap500mt2.gif 

Fuel gages are arranged left tank, center tank and right tank on the top 

right side.



The three gages on my panel read fuel levels very accurately with these 

side mount positions.



Larry McFarland 601HDS at www.macsmachine.com



Gary Gower wrote:

 	  Quote: 	
		  

 Hello 601 builders,

  

 I am ready to install the fuel senders in the 601 tanks...  Just I am 

 holding a little, doing some thinking, about the chance of installing 

 the senders on the top of the tank...  

  

 Two questions?

 Someone had installed the senders on top of the tank in the 601 XL? 

 Have photos?. 

  

 From some of you that have flying airplanes and that have the senders 

 on the side.  The sealing is satisfactory?

 I will hate to need to open the leading edge skin(s) to replace the 

 sender or the gaskets... I think there is no way to reach it throught 

 the 3 front ribs holes, to replace it...

  

 Thank you all in advance for the comments.

  

 Saludos

 Gary Gower.

 701 912S 

 Building 601 XL Jab 3300

 Fuselage almost ready,  tail surfaces ready, working on wings.

  

  

  

  

 *

 *

psm(at)att.net
Guest

Posted: Tue Jun 16, 2009 5:52 pm Post subject: Advice about gas tanks in 601.

Hi Gary,



I have senders on tank tops and photos (someplace . . .)  I can dig 

them up if you want.



One of my neighbors bought a Zodiac XL and had a leak around the 

senders which were on top of the tank.  He strongly recommended to me 

that I install inspection plates over the senders.  I didn't do it 

yet because my tanks were already closed into the wings, but you 

might consider such a feature.



If you still want the pictures, please let me know.  I am sure I have 

them someplace in the pile of 1500 or so pics I have.



Best regards,



Paul

At 05:16 PM 6/16/2009, you wrote:



 	  Quote: 	
		  Hello 601 builders,



I am ready to install the fuel senders in the 601 tanks...  Just I 

am holding a little, doing some thinking, about the chance of 

installing the senders on the top of the tank...



Two questions?

Someone had installed the senders on top of the tank in the 601 XL? 

Have photos?.



 From some of you that have flying airplanes and that have the 

 senders on the side.  The sealing is satisfactory?

I will hate to need to open the leading edge skin(s) to replace the 

sender or the gaskets... I think there is no way to reach it 

throught the 3 front ribs holes, to replace it...



Thank you all in advance for the comments.



Saludos

Gary Gower

chuck960

Joined: 11 Mar 2009
Posts: 44
Location: PA

Posted: Tue Jun 16, 2009 6:21 pm Post subject: Re: Advice about gas tanks in 601.

In my opinion the sender supplied with the kit needs some help. Get rid of the backing ring. It will only grab a very small amount of the tank skin.

Here are some photos. Also McMaster Carr has some very very good sealing washers for #10 screws. You will not need any liquid sealer.

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bryanmmartin

Joined: 10 Jan 2006
Posts: 1018

Posted: Tue Jun 16, 2009 6:44 pm Post subject: Advice about gas tanks in 601.

I have mine in the top of the tanks as per the early plans I have.  

They have changed the senders since then. I had to modify the senders  

some to get a low enough profile to fit on top. I also installed  

access panels over the senders. I think I have pictures but I don'  

have them handy right now.



On Jun 16, 2009, at 8:16 PM, Gary Gower wrote:



 	  Quote: 	
		  

 Hello 601 builders,



 I am ready to install the fuel senders in the 601 tanks...  Just I  

 am holding a little, doing some thinking, about the chance of  

 installing the senders on the top of the tank...



 Two questions?

 Someone had installed the senders on top of the tank in the 601 XL?  

 Have photos?.



 From some of you that have flying airplanes and that have the  

 senders on the side.  The sealing is satisfactory?

 I will hate to need to open the leading edge skin(s) to replace the  

 sender or the gaskets... I think there is no way to reach it  

 throught the 3 front ribs holes, to replace it...


	


-- 

Bryan Martin

N61BM, CH 601 XL,

RAM Subaru, Stratus redrive.

_________________
--
Bryan Martin
N61BM, CH 601 XL, Stratus Subaru.
do not archive.

leo.gates

Joined: 29 Nov 2008
Posts: 35

Posted: Tue Jun 16, 2009 6:45 pm Post subject: Advice about gas tanks in 601.

Gary,



Mine is a HDS, but with leading edge tanks with sender on the side.  

Sealed mine with permatex four years ago, no leak.



Leo Gates

CH601HDS TDO, Rotax 912UL



Gary Gower wrote:

 	  Quote: 	
		  

 Hello 601 builders,

  

 I am ready to install the fuel senders in the 601 tanks...  Just I am 

 holding a little, doing some thinking, about the chance of installing 

 the senders on the top of the tank...  

  

 Two questions?

 Someone had installed the senders on top of the tank in the 601 XL? 

 Have photos?. 

  

 From some of you that have flying airplanes and that have the senders 

 on the side.  The sealing is satisfactory?

 I will hate to need to open the leading edge skin(s) to replace the 

 sender or the gaskets... I think there is no way to reach it throught 

 the 3 front ribs holes, to replace it...

  

 Thank you all in advance for the comments.

  

 Saludos

 Gary Gower.

 701 912S 

 Building 601 XL Jab 3300

 Fuselage almost ready,  tail surfaces ready, working on wings.

  

  

  

  

 *

 *

steerr(at)bellsouth.net
Guest

Posted: Wed Jun 17, 2009 4:57 am Post subject: Advice about gas tanks in 601.

Hi, Gary.  I installed mine in the side, per the plans.  No leaks so 

far, but I did have to replace one of the senders that turned out to be 

bad.  Didn't discover it until the wiring was in place.  It was no 

problem at all to replace it.



Bill

Gary Gower wrote:

 	  Quote: 	
		  

 Hello 601 builders,

  

 I am ready to install the fuel senders in the 601 tanks...  Just I am 

 holding a little, doing some thinking, about the chance of installing 

 the senders on the top of the tank...  

  

 Two questions?

 Someone had installed the senders on top of the tank in the 601 XL? 

 Have photos?. 

  

 From some of you that have flying airplanes and that have the senders 

 on the side.  The sealing is satisfactory?

 I will hate to need to open the leading edge skin(s) to replace the 

 sender or the gaskets... I think there is no way to reach it throught 

 the 3 front ribs holes, to replace it...

  

 Thank you all in advance for the comments.

  

 Saludos

 Gary Gower.

 701 912S 

 Building 601 XL Jab 3300

 Fuselage almost ready,  tail surfaces ready, working on wings.

  

  

  

  

 *

 *

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

 Checked by AVG - www.avg.com

z601(at)anemicaardvark.co
Guest

Posted: Wed Jun 17, 2009 5:48 am Post subject: Advice about gas tanks in 601.

On Tuesday 16 June 2009 19:16, Gary Gower wrote:

 	  Quote: 	
		   HelloÂ 601 builders,

 Â 

 I am ready to install the fuel senders in the 601 tanks...Â  Just I am

 holding a little, doing some thinking, about the chance of installing the

 senders on the top of the tank...Â Â  

 Two questions?

 Someone had installed the senders on top of the tank in the 601 XL? Have

 photos?.Â  



 >From some of you that have flying airplanes and that have the senders on

 > the side.Â  The sealing is satisfactory?



 I will hate to need to open the leading edge skin(s) to replace the sender

 or the gaskets...Â I think there is no way to reach it throught the 3 front

 ribs holes, to replace it... 

 Thank you all in advance for the comments.


	


Gary, I haven't tried this, but my immediate thought is that it places the 

assembly and the electrical connections in an area where there's very little 

room, and where it will be harder to service, should this become necessary 

later.



-- 

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

                Do not archive.

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

                Jim B Belcher

    BS, MS Physics, Math, Computer Science

                  A&P/IA

     Retired aerospace technical manager

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

z601(at)anemicaardvark.co
Guest

Posted: Wed Jun 17, 2009 6:04 am Post subject: Advice about gas tanks in 601.

On Tuesday 16 June 2009 19:31, John Davis wrote:

 	  Quote: 	
		   Hi Gary,



 I installed my senders on the side per the plans. I first installed them

 with just the gasket and paper washers for the screws and they leaked

 around the screw holes. I removed them thu the lightening hole and the

 maintenance opening on the bottom of the wing and and reinstalled them

 with fuel lube sealant on the gasket and screws and haven't had a leak

 so far. I've got about 15 hours with no leaks...


	


After sealing the sender with sealant as you did, I put a soapy mixture around 

the sender, and pressurized the tank slightly.



On one tank, I got bubbles around one screw, and had to do some additional 

sealing. On the other, no bubbles appeared. 



I feel reasonably confident that when I finally get the aircraft finished I 

won't have fuel leaks. Or at least, not there.



About 20 years ago, I rebuilt a Tripacer, and blindly thought with sealant and 

snugging the screws to their appropriate level of tightness, thinking I 

wouldn't have leaks. I was wrong.

-- 

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

   You can check on my aircraft construction     

progress at: http://www.mykitlog.com/santaigo

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

               Jim B. Belcher

    BS, MS Physics, math, Computer Science

                  A&P/IA

           Instrument Rated Pilot

     General Radio Telephone Certificate

     Retired Aerospace Technical Manager

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



-- 

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

                Do not archive.

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

                Jim B Belcher

    BS, MS Physics, Math, Computer Science

                  A&P/IA

     Retired aerospace technical manager

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

ggower_99(at)yahoo.com
Guest

Posted: Sun Jun 21, 2009 6:51 pm Post subject: Advice about gas tanks in 601.

 	  Quote: 	
		   Hello all my friends...

  

 I really appreciate all the answers in the list and also off list I recieved about the senders instalation.

 I didnt answer earlyer because I was thinking a lot about all your answers...

  

 This is something great about this list... Like the good old times.

  

 Given my experience building the 701 as close as possible to the plans, and the great results 240 flying hours later...  and counting.

  

 I am going with the side senders, as the plans, but will take the advice from you all in account looking for a good sealed instalation.  Not forgiving that might need to change a sender (electric parts are never built fail proof) in a future.

  

 Thank you all once more. 

  

 Saludos

 Gary Gower.

 Flying from Chapala, Mexico.

 Keep building and flying, Please!

	


           [quote][b]

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