I've got a quick-drain (750) that sometimes drips a very tiny amount of fuel (I left my door open and it dripped on the plexi and frame, so I've now got blue stripes on the door.

Any clever way to change it out without draining the tank? Any smart way to clean up the dried fuel?

THANKS everybody!

Views: 218

Reply to This

Replies to This Discussion

HI Wayne,, when this happens on our Cessna, I Pull the drain fitting and put my thumb over the hole with the new drain at the ready to insert. As for the stain I use Meguire's polish which should work on paint or plexiglass...Tom 

get a replacement stainless steel valve, and as you havent done this before obtain from the vetinary clinic one of those long arm vinyl gloves they use for the hard to reach places of a cow.

The pros just unscrew the leaking valve with one hand, pop the new one in with the other. You can catch the fuel in a bowl, its not much. The glove is to allow avgas to not run along your arm, its not nice.

For my 701, the threads are taper, and i was careful to avoid any twisting stress on the tanks. Use Vise-grips on the collar and apply the unscrewing force between the grips and spanner only.

I used to repair the rusty valves and keep one onboard as spare but it got frequent enough for me to buy the SS version and they are just great. All brass would be another way. My Cessna had the same problem why they made them in Cad plated steel when their function is to drain water....


Mine are brass. Perhaps there's a tiny burr that stops it from closing properly some of the time (I have turned it and snapped it before and got it to stop leaking, but I'd prefer that it not leak at all. I have a new brass one, but I'll inspect it carefully with a hand lens if the seat and valve head are visible.

Thanks for you ideas.

I've replaced lots an lots of quick drains, save the old one, 9 times outa 10 there's a paint chip or some other small piece of dabree is stuck in the o ring. I just swap em, clear the dabree an save the old one for next time


Good point, David. Thanks.


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.

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!

© 2021   Created by Zenith.Aero.   Powered by

Badges  |  Report an Issue  |  Terms of Service