Fuel Cap Failure

Fuel Cap Failure

Postby N111YX » Mon Aug 06, 2012 11:57 pm

The "older" Sonex tanks have this "Thermos-style" cap. Mine lasted about 300 hours of flight time before failure. Some rough math has me arrive at a figure of about 210 open/close cycles on the thing. You can see that the metal washer pulled through the rubber. After buying a replacement at $50, it seems that if one could aquire the rubber part only, it would be cheaper. I'll look into that next time...
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Kip

2010 Waiex 0082 (first flight May 2010)
Jabiru 3300 #1637 and #3035
Dynon D-180
Becker radios
Garmin GDL 82 ADS-B
1050 hours
48 states visited
Based near Atlanta

Also flying a...
2000 Kolb Firestar II, Rotax 503, 575 hours
N111YX
 
Posts: 705
Joined: Fri Jun 03, 2011 9:43 am
Location: Atlanta, GA USA

Re: Fuel Cap Failure

Postby N111YX » Tue Aug 07, 2012 1:43 pm

I should add that the washer "contains" the rubber piece when it gives way so parts do not break free and go into the tank...
Kip

2010 Waiex 0082 (first flight May 2010)
Jabiru 3300 #1637 and #3035
Dynon D-180
Becker radios
Garmin GDL 82 ADS-B
1050 hours
48 states visited
Based near Atlanta

Also flying a...
2000 Kolb Firestar II, Rotax 503, 575 hours
N111YX
 
Posts: 705
Joined: Fri Jun 03, 2011 9:43 am
Location: Atlanta, GA USA

Re: Fuel Cap Failure

Postby GWMotley » Tue Aug 07, 2012 8:00 pm

Hi Kip,
I have heard this happening before with the cap on the other site. Hence, I have already purchased a spare to keep on hand. The other part I have been thinking about as well,is,the secondary trigger magnet as I have heard of the magnet falling out and possibly being stranded somewhere.
Gary Motley
Sonex 1155
Great Plains Force One/Aerovee Hybridized
MGL/ipad panel
First Flight 08/2011
About 670 hours on this plane
GWMotley
 
Posts: 83
Joined: Sun May 13, 2012 1:08 pm

Re: Fuel Cap Failure

Postby sonex1284 » Tue Sep 09, 2014 12:12 pm

My original fuel cap is about 1/2 way torn through. It still appears to be sealing. I found the direct replacement at Amazon for $20.58 with free shipping.
Shaw Plugs Snap-Tite 51019

http://www.amazon.com/Shaw-Plugs-Snap-T ... B0085PC8EI

I'll update this post if it's the wrong size.
Mike Kelley
The Villages, FL 32163
Sonex 1284, N154MK, Tri-Gear w/Jab 3300
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sonex1284
 
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