Newton Fuel Caps

[gcman6]

I'm wondering if anyone has installed the Newton Aero 300 fuel caps in their fuel tanks recently. Van's doesn't sell them anymore although you can purchase them through Aircraft Spruce.

https://www.aircraftspruce.com/catal...o_05-22934.php

However I have seen some comments that the precut hole in the fuel tank skin is a little larger now and I'm wondering if anyone has any pictures or can say if the Newton Fuel caps will actually work before I spend the money on them. Thanks!

[CubedRoot]

I bought my wing kit a few years ago, when Vans sold them as the "Deluxe Locking Fuel Caps" as an option. I bought them and I REALLY like them.

Here's a few posts on my blog where I installed them: https://theskunkwerx.com/tag/fuel-caps/

This one specifically gives some good photos and details on the installation: https://theskunkwerx.com/rv7/fitting...and-fuel-caps/


They fit completely flush with the tank skin, and are incredibly high quality units.

[Vlad]

They are great you won’t regret installing. Thousands hours later they still perform flawlessly. I never used locking feature.

[gcman6]

Ok Thanks. I think I'll get the Newton Caps. FYI for any future builders that Van's doesn't sell the Newton Fuel caps anymore as the "deluxe" fuel caps.

[Freakshow108]

I purchased them and they do not fit. The hole in the wing is larger than the cap and the backing ring.
If your opening is smaller, let me know. I still have my caps and backing plates. I will sell them to you at a discount because I went with the standard caps. They are NIB and I have the keys to match.

[CubedRoot]

Freakshow, when did you purchase your wing kit? It makes me wonder when Vans started doing larger holes for the fuel caps.

I bought my wings around the first of 2017, and the fuel cap hole in the skin fit my newton caps perfectly.

[Freakshow108]

Originally Posted by CubedRoot

Freakshow, when did you purchase your wing kit? It makes me wonder when Vans started doing larger holes for the fuel caps.

I bought my wings around the first of 2017, and the fuel cap hole in the skin fit my newton caps perfectly.

November of 2018. I was bummed they did not fit. The newton caps are beautiful.

[gcman6]

I just checked my holes are the same size as yours 2 9/16”. I contacted Newton and got the spec sheet for the aero 300 A30 caps and it says the cap diameter is 2.3” and the flange diameter is 3.7”. Based on those numbers it looks like they should fit. What are the dimensions of your caps and flange?

[CubedRoot]

with the hole at 2 9/16" (2.56") and the cap being 2.3", thats going to leave you with the same gap around the cap as you in the photo above.

My fuel caps have a very small gap around the newton caps. You can see in this photo:
https://theskunkwerx.com/wp-content/...97-scaled.jpeg

And in this video you can really see how the Newtons fit into the smaller hole of the wing skins:

https://youtu.be/1zhIasT48Q0

[Freakshow108]

I will have to measure them when I get home this afternoon. I can text you pics and measurements. My number is +12537209711 if you want to text me your phone number. If not I will just post it on this thread.