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Home made fuel nipple for COX Tee Dee RC carb Cox_ba12




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Home made fuel nipple for COX Tee Dee RC carb Empty

Home made fuel nipple for COX Tee Dee RC carb

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Home made fuel nipple for COX Tee Dee RC carb Empty Home made fuel nipple for COX Tee Dee RC carb

Post  balogh Sun Oct 17, 2021 11:37 am

A regretfully weak point of the COX Tee Dee RC carburetor is its black plastic fuel nipple. It breaks easily if you forget to be cautious when fiddling with the fuel line:

Home made fuel nipple for COX Tee Dee RC carb Td_rc_10

If you are lucky, you will find a replacement nipple in the webshop of either  Bernie or Matt, but currently they are out of stock.

I decided to make my own, more lasting, metal fuel nipple, from a landing gear wheel stop:

Home made fuel nipple for COX Tee Dee RC carb Wheel_10

and a pressure nipple used on exhaust mufflers:

Home made fuel nipple for COX Tee Dee RC carb Pressu10

All I had to do was increase the bore on the wheel stop from 3mm to 4.8mm, and now it slips easily on the COX Tee Dee RC carb spray bar. (This is the same size for the 05 and 09 size TeeDee-s !!). Then, drill out the M3 lock screw thread and tap it to M4 so that the nipple screws into the wheel end.

The result is:


Home made fuel nipple for COX Tee Dee RC carb Rc_car10

I need to put a M4 counter nut on the pressure nipple stem and some silicone bands on the two faces of the wheel end for a perfect sealing, and I am done....

...as easy as that...the only exotic tool I needed was a 4mm tap, so now I can start serial production... Smile
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Home made fuel nipple for COX Tee Dee RC carb Empty Re: Home made fuel nipple for COX Tee Dee RC carb

Post  sosam117 Sun Oct 17, 2021 11:48 am

I had one brake on my Tee Dee .051 and had to make my own as well.
I used K&S Brass tubing and made it like the original plastic nipple.
The tubing is a nice fit and it screws on like the original.
Made a fixture for the soldering of the two brass pieces where they come together.

Home made fuel nipple for COX Tee Dee RC carb 001_ni11
Home made fuel nipple for COX Tee Dee RC carb 002_ni11
Home made fuel nipple for COX Tee Dee RC carb Broken12
Home made fuel nipple for COX Tee Dee RC carb Broken13

I have made six of them just incase any more of the original nipples break (which they will)
I also flared the end of the fuel side to retain the fuel line better.
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Post  balogh Sun Oct 17, 2021 12:19 pm

Yours is a masterpiece Sosam, mine is the po' man's DIY piece made of repurposed modelling components..I am not quite good at soldering either.. Very Happy
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Post  NEW222 Sun Oct 17, 2021 2:31 pm

Very nice work indeed!
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Post  EXModelEngines Sun Oct 17, 2021 3:39 pm

Very nice work!

We should have a production version made from aluminum available soon - just doing some final testing.
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Post  balogh Sun Oct 17, 2021 3:56 pm

(I am puzzled if these guys praise mine or sosam's DIY nipple? Huh...  lol! more likely it is sosam's..anyway I am happy with the makeshift solution I invented. )
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Post  sosam117 Mon Oct 18, 2021 8:16 am

@balogh wrote:(I am puzzled if these guys praise mine or sosam's DIY nipple? Huh...  lol!  more likely it is sosam's..anyway I am happy with the makeshift solution I invented. )

balogh,
I think your fuel nipple is just as good as mine.
There is always different types of mouse traps out there.
Yours is the simple way (easier) to make up and mine is for the one that has the extra tools to do it.

I give you many kudos for doing it you way and a way that is any others can do and with what you have on hand.
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Post  EXModelEngines Mon Oct 18, 2021 8:22 am

@balogh wrote:(I am puzzled if these guys praise mine or sosam's DIY nipple? Huh...  lol!  more likely it is sosam's..anyway I am happy with the makeshift solution I invented. )

Both of course!
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Post  balogh Mon Oct 18, 2021 12:36 pm

Thanks Matt




Here comes the installed component...BTW the 09 RC carb was also bought from you if you recall.. Very Happy


Home made fuel nipple for COX Tee Dee RC carb 20211010

The red cap on the NV is repurposed from Bernie' s after run oil capsule... Very Happy
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Post  EXModelEngines Mon Oct 18, 2021 2:53 pm

@balogh wrote:Thanks Matt




Here comes the installed component...BTW the 09 RC carb was also bought from you if you recall.. Very Happy


Home made fuel nipple for COX Tee Dee RC carb 20211010

The red cap on the NV is repurposed from Bernie' s after run oil capsule... Very Happy

Yes, I remember! Hopefully something for the 09 will be available again too, albeit on a smaller scale.


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Post  Coxfledgling Tue Oct 19, 2021 3:10 am

Hopefully some td09 plastic carb manifolds, I am also searching for an exhaust silencer and complete RC carb.
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Post  andrew Tue Oct 19, 2021 8:23 am

A "Very nicely done" to each of you.  Innovation and solutions to problems take many forms and both of you found a viable fix. Kudos.
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Post  balogh Tue Oct 19, 2021 12:24 pm

Thank you Andrew..

Andras
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Post  balogh Wed Nov 10, 2021 12:20 pm

Just in case you are in need of a replacement fuel nipple for your TeeDee050 RC carb, here are the components I used for the one on the left that had a broken stock plastic nipple:

Home made fuel nipple for COX Tee Dee RC carb 20211113

I just had to increase the 3mm dia hole on the wheel stop to 4.8mm and the rest was just assembling it.
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