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Stewart Warner fuel tank sender

 
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docclv(at)windstream.net
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PostPosted: Fri Jun 19, 2020 5:21 am    Post subject: Stewart Warner fuel tank sender Reply with quote

Guys: It is no problem to remove the fuel tang sender with the wing
attached. I would recommend replacing the rubber gasket with a cork or
similar gasket when replacing the sender as the original rubber gaskets
squash out with time and leak. Use a pager punch to make the screw
holes in the new gasket. Do not seal with silicone as it is not gas
proof. Use the gray colored 2-part tank sealer recommended by Vans if
you want extra sealer. Doc Ser #s 41862 and 41087


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Lenny Iszak



Joined: 23 Mar 2008
Posts: 262

PostPosted: Fri Jun 19, 2020 7:28 am    Post subject: Stewart Warner fuel tank sender Reply with quote

I used a Viton gasket and sealing screws with Viton orings from McMaster (link below), without any tank sealant. That was in 2014. Both senders have been leak free since then. It’s more serviceable this way if something goes wrong with the sender.
https://www.mcmaster.com/sealing-screws/sealing-rounded-head-screws/system-of-measurement~inch/o-ring-material~fluoroelastomer-rubber/thread-type~unf/

Lenny
Quote:
On Jun 19, 2020, at 9:19 AM, Doc <docclv(at)windstream.net (docclv(at)windstream.net)> wrote:
--> RV10-List message posted by: Doc <docclv(at)windstream.net (docclv(at)windstream.net)>Guys: It is no problem to remove the fuel tang sender with the wing attached. I would recommend replacing the rubber gasket with a cork or similar gasket when replacing the sender as the original rubber gaskets squash out with time and leak. Use a pager punch to make the screw holes in the new gasket. Do not seal with silicone as it is not gas proof. Use the gray colored 2-part tank sealer recommended by Vans if you want extra sealer. Doc Ser #s 41862 and 41087http://www.matronics.com/Navigator?RV10-Listhttp://wiki.matronics.com



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Lenny Iszak
Palm City, FL
2014 RV-10, N311LZ - 500 hrs
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dmaib@me.com



Joined: 25 Apr 2006
Posts: 451
Location: New Smyrna Beach, Florida

PostPosted: Fri Jun 19, 2020 1:30 pm    Post subject: Re: Stewart Warner fuel tank sender Reply with quote

I used the rubber gasket with no sealant for almost 10 years. I put some fuel lube on the gasket and never had leaks. I changed to the Viton gasket and sealing screws with viton o-rings after reading Lenny's post about that a few years ago. Works great and still no leaks. I have had to change senders a couple of times over the years and it is not a difficult job. You have to be delicate when tightening the screws. If you really torque down on them, you might cause leaks.

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David Maib
RV-10 #40559
New Smyrna Beach, FL
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Dave Saylor



Joined: 11 Jan 2015
Posts: 168
Location: GILROY, CA

PostPosted: Fri Jun 19, 2020 8:39 pm    Post subject: Stewart Warner fuel tank sender Reply with quote

Did you make the big viton gasket from a sheet?

On Fri, Jun 19, 2020 at 8:33 AM Lenny Iszak <lenard(at)rapiddecision.com (lenard(at)rapiddecision.com)> wrote:

Quote:
I used a Viton gasket and sealing screws with Viton orings from McMaster (link below), without any tank sealant. That was in 2014. Both senders have been leak free since then. It’s more serviceable this way if something goes wrong with the sender.

https://www.mcmaster.com/sealing-screws/sealing-rounded-head-screws/system-of-measurement~inch/o-ring-material~fluoroelastomer-rubber/thread-type~unf/
Lenny

Quote:
On Jun 19, 2020, at 9:19 AM, Doc <docclv(at)windstream.net (docclv(at)windstream.net)> wrote:

--> RV10-List message posted by: Doc <docclv(at)windstream.net (docclv(at)windstream.net)>

Guys:  It is no problem to remove the fuel tang sender with the wing attached.  I would recommend replacing the rubber gasket with a cork or similar gasket when replacing the sender as the original rubber gaskets squash out with time and leak.  Use a pager punch to make the screw holes in the new gasket.  Do not seal with silicone as it is not gas proof.  Use the gray colored 2-part tank sealer recommended by Vans if you want extra sealer.  Doc  Ser #s 41862 and 41087http://www.matronics.com/Navigator?RV10-List
http://wiki.matronics.comhttp://www.matronics.com/contribution





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KWVI
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Lenny Iszak



Joined: 23 Mar 2008
Posts: 262

PostPosted: Sat Jun 20, 2020 8:50 am    Post subject: Stewart Warner fuel tank sender Reply with quote

I used these gaskets
https://www.amazon.com/dp/B0075EBPKS
Viton Fluoroelastomer Flange Gasket, Ring, Black, Fits Class 150 Flange, 1/8" Thick, 1" Pipe Size, 1-5/16" ID, 2-5/8" OD (Pack of 1)
and just punched holes in them with a leather punch tool like this:

[img]cid:3FC70902-18D8-4AFD-B6E6-95D2479CF67A(at)localdomain[/img]

Lenny
Quote:
On Jun 19, 2020, at 8:32 PM, David Saylor <saylor.dave(at)gmail.com (saylor.dave(at)gmail.com)> wrote:
Did you make the big viton gasket from a sheet?
On Fri, Jun 19, 2020 at 8:33 AM Lenny Iszak <lenard(at)rapiddecision.com (lenard(at)rapiddecision.com)> wrote:
Quote:
I used a Viton gasket and sealing screws with Viton orings from McMaster (link below), without any tank sealant. That was in 2014. Both senders have been leak free since then. It’s more serviceable this way if something goes wrong with the sender.
https://www.mcmaster.com/sealing-screws/sealing-rounded-head-screws/system-of-measurement~inch/o-ring-material~fluoroelastomer-rubber/thread-type~unf/

Lenny
Quote:
On Jun 19, 2020, at 9:19 AM, Doc <docclv(at)windstream.net (docclv(at)windstream.net)> wrote:
--> RV10-List message posted by: Doc <docclv(at)windstream.net (docclv(at)windstream.net)>Guys: It is no problem to remove the fuel tang sender with the wing attached. I would recommend replacing the rubber gasket with a cork or similar gasket when replacing the sender as the original rubber gaskets squash out with time and leak. Use a pager punch to make the screw holes in the new gasket. Do not seal with silicone as it is not gas proof. Use the gray colored 2-part tank sealer recommended by Vans if you want extra sealer. Doc Ser #s 41862 and 41087http://www.matronics.com/Navigator?RV10-Listhttp://wiki.matronics.comhttp://www.matronics.com/contribution






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Lenny Iszak
Palm City, FL
2014 RV-10, N311LZ - 500 hrs
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