I am using the fuel caps provided by Zenith but allways see fuel stains from fuel leaking obviously while in flight. I have seen pictures of fuel caps with an elevated gooseneck breather. Do these prevent the loss of fuel that I am seeing? Are they available from any commercial source? Thanks in advance, Ray

Views: 267


You need to be a member of Zenith Aircraft Builders and Flyers to add comments!

Join Zenith Aircraft Builders and Flyers

Comment by Robert R. Kissell on March 9, 2009 at 4:10pm
You can easily modify the Zenith caps and add a "goose neck" or snorkel vent. I fixed mine by drilling through the center of the cap and inserting a snorkel made from steel brake line. The raw stock can be purchased at most automotive part houses, get one with a flare on both ends, cut two pieces from it, bend to shape and braze to the caps. Make sure to line the direction of the snorkel relative to each cap when tightened, I found my caps tightened in different positions. A MAP gas torch works good to braze these on. Once cool, repaint and fill the edge vents with epoxy. These caps have worked great for me and balanced the fuel flow problem I had before. I have written more about this before on the Matronics site so check there for additional details.Good luck..
Comment by Debra and Patrick Nesbitt on March 8, 2009 at 10:36am
Yes the elevated gooseneck breather prevent fuel leaking. I flew a rans s-12 that had them and never any problem of fuel leaking. The Zenith caps are a different design in that they vent around the outside of the cap I believe. I read somewhere that you can drill and weld a gooseneck breather tube on and fill in around the outside of the cap. I think Wag-aero sells them, the ones on the rans were plastic caps with metal goosenecks.

New from Zenith:

Zenith Planes For Sale 

Classified listing for buying or selling your Zenith building or flying related stuff...

Custom Instrument Panels
for your Zenith

Custom instrument panels are now available directly from Zenith Aircraft Company exclusively for Zenith builders and owners. Pre-cut panel, power distribution panel, Approach Fast Stack harnesses, Dynon and Garmin avionics, and more.

Custom Upholstery Kits for your Zenith Aircraft:

Zenith Vinyl Upholstery Kits

Zenith Apparel from EAA:

Zenair Floats

Flying On Your Own Wings:
A Complete Guide to Understanding Light Airplane Design, by Chris Heintz

Builder & Pilot Supplies:

How to videos from HomebuiltHELP.com

Developed specifically for Zenith builders (by a builder) these videos on DVD are a great help in building your own kit plane by providing practical hands-on construction information. Visit HomebuiltHelp.com for the latest DVD titles.

Aircraft Insurance:


West Coast USA:

Pro Builder Assistance:


Transition training:

Golden Eagle Aviation

Pianosa Flying Farm

Aircraft Spruce & Specialty for all your building and pilot supplies!

© 2020   Created by Zenith.Aero.   Powered by

Badges  |  Report an Issue  |  Terms of Service