Guys -

My engine came with a bare tail-pipe which I have fitted through the cowl and am now trying to figure out how to attach springs too.  Did your engines come with the spring retainers attached to the pipe or no?

I'm not seeing any spare retainers to weld on either.

When you have a moment please let me know your thoughts.



Views: 212

Reply to This

Replies to This Discussion


Since this is the Open Forum and not a specific engine forum, it might be helpful to mention which engine you have in case there is a specific fix for your problem!

John Forum Moderator

Sorry about that John  - thought I was in the UL Power forum !

You could always place a worm gear clamp on each side of the joint and use that to attach springs. Alternatively, you could buy some stainless steel at a Lowes/HD and weld it yourself (you kinda hinted at that saying there were no tabs included) or have a muffler shop do it for you.

Regardless of your approach, I'd put some safety wire on there in addition to the springs; I've had 3 of 4 springs go missing, so I started running safety wire thru the springs to ensure nothing fell on those below.

Excellent advice Carl, thanks very much.  The safety wire tip is huge!

Wayne, the retainer clips should have come with the engine package. They are easy to misplace. Call UL Power rep and see if they will send you some! I had to weld mind on after I positioned the tail pipe and marked where to put the clips. Put some hi temp anti-seize on the pipe and work it in to the muffler, attach one end of each spring and then mark where to put the retaining clips. Remember to allow for some spring tension as well. I did a quick search on ACS and the ULPower parts websites but could not locate the clips. Good Luck.

David -

Thanks for your response.  I need to look harder then, if not I'll ask Robert if he has some.  I wondered if I was missing them.

Great forum as always!


New from Zenith:

Zenith Planes For Sale 

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


Weather Maps

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

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 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