Modifying Medallion .09 & .15 Venturi to fit an Enya needle valve assem.

Ummm...Sosam,
What about the .049 Medallion? Any good news there?

Thanks in advance.

944_Jim wrote:Ummm...Sosam,
What about the .049 Medallion? Any good news there?

Thanks in advance.

I don't know if the same thing can be done on the .049 /.51 Medallion.
Never had to do one on an Cox .049 Medallion?

You might want to try to purchase the Enya .049 needle valve assembly?
That part number is the same as the Enya.06 assembly and see if you can replicate the same thing as the .09 and .15?

The Enya part number is: 06211
You should be able to order it from Bob Brooks (shtterman)
Or straight from Ken Enya's website?

Why would you do this though? Genuine question!

Why? Because no where can these NVAs be purchased new, nor as just a used part. I just bought a stripped .09 Medallion specifically for the NVA. I'm quite embarrassed by how much I spent for a useless case, red venturi body and NVA. The guy tossed in the piston (or I didn't see it in the ad), but it is so useless that it's next life is as a key fob.

The 049 and 09 Medallions use the same spraybar and needle valve -and there seems to be an ongoing demand. Is it appropriate at this point to ask our masters..ie Cox International-if they have any plans to do a run of spraybars and needles?

There area LOT of Medallions out there.....and of course apparently sufficient demand for Mecoa to be making the actual plastic venturi housings....so why not the rest of the assembly? For example-any crash bad enough to break or damage the plastic venturi is almost certain to bend the needle valve at least-and these are usually hard or impossible to straighten accurately.....


ChrisM
'ffkiwi'

Chris,
You have no argument from me. But I would suggest the needle and or red body is what gets damaged during a lawn dart maneuver, not the spray bar. As you say, needles and bodies are still available.
My ignorance caused me to double down on twin RC engines, both .09 and .15. The price was too good, so I jumped at them very quickly. I really thought I beat the other guy.

While bench testing, my not-so-young eyes couldn't see the spray bar turning in one of the .09s. It just wouldn't adjust and run right. So I started working one of the .15s, and it behaved the same. I couldn't believe I had two duds back to back, so I stripped both down only to really see what I had. DOH! Face-Palm...not once, not twice...but all four. That's a pair of .09s, and .15s!

Thanks for the detailed instructions and cautions to retrofit an Enya NVA to the Medallions, @sosam117, and reason why @ffkiwi. I didn't know Cox was out-of-stock. In future when I need, now have the hip pocket info to do.

Recently I replaced a Testor's .049 front rotor NVA with a Cox Surestart horseshoe back NVA, but haven't tested it yet. It was the only way I knew how to fix a bungled NVA.

Converted a couple Testor's McCoy .35 Red Heads to rear NVA with an Evolution .46 rear NVA (1-inch bolt spacing fits the RH's & K&B .35 Stallion backplate spacing perfectly). Love the much finer threading, easier to dial in the right mixture.

But lo and behold, these are no longer available. China's Sanye factory closed its model engine manufacturing doors 2 years ago.

GallopingGhostler wrote:Thanks for the detailed instructions and cautions to retrofit an Enya NVA to the Medallions, @sosam117, and reason why @ffkiwi. I didn't know Cox was out-of-stock. In future when I need, now have the hip pocket info to do.

Recently I replaced a Testor's .049 front rotor NVA with a Cox Surestart horseshoe back NVA, but haven't tested it yet. It was the only way I knew how to fix a bungled NVA.

Converted a couple Testor's McCoy .35 Red Heads to rear NVA with an Evolution .46 rear NVA (1-inch bolt spacing fits the RH's & K&B .35 Stallion backplate spacing perfectly). Love the much finer threading, easier to dial in the right mixture.

But lo and behold, these are no longer available. China's Sanye factory closed its model engine manufacturing doors 2 years ago.

You can get the NVA very easy from Ken Enya (Enya website -- with part number), or MECOA or shtterman. (That's a good thing.)