Better seal for gas tank float sending units?

I was not happy with the instructions that came with the sending unit ring in that it gave a very small area to seal with, so I did something different:

I cut a slot in the ring so that it could be put through an opening the size of the inner hole of the rubber gasket.

Start one of the short screws to keep from dropping it, then use the long screw to get the float assembly started, then remove your helper screw.

This gives the whole gasket area room to seal, instead of just a tiny lip.

Views: 4074

▶ Reply to This

Replies to This Discussion

Permalink Reply by John Bell on May 25, 2021 at 9:46am

Yeah that was my biggest concern with the pro-seal. I imagine that it would be a bugger to get the sender off if it were to fail. I followed Marks journey with his senders and now wish that I had installed them on the top as well but I was perhaps a little too trusting of the original design. I did use John C’s split ring method for a far better surface area on the gasket but...decisions decisions.

Permalink Reply by Guy Fortier on May 25, 2021 at 9:52am

What does this ProSeal look like? Anyone have a picture of it??

Permalink Reply by John Bell on May 25, 2021 at 10:33am

Look further up in this thread. You can see where Don Morrisey used it on his top mounted senders. Its like peanut butter going on but hardens like steel. 

Permalink Reply by John Bell on May 25, 2021 at 9:58am

Hey John C. How have your senders been performing? Any issues with leaks, readings? I used your split ring method for the install but am still a little leery on the long term for leaks.

John B

RSS

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, Dynon and Garmin avionics, and more.

Zenith Homecoming Tee:

Zenair Floats

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

Builder & Pilot Supplies:

Aircraft Insurance:

 
 

West Coast USA:

 
Pro Builder Assistance:

 

Transition training:

Lavion Aero

K&S Aviation Services

Aircraft Spruce & Specialty for all your building and 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.

© 2024   Created by Zenith.Aero.   Powered by

Badges  |  Report an Issue  |  Terms of Service