Vivi Nova V2 rebuild advice

[jimwormold]

Hi all,

I've recently got a Vivi Nova V2 and am occasionally experiencing inconsistent flavours - not sure if it's wicking enough, or overheating... I would like to rebuild the coil and wick but have none of the equipment. I was looking for some advice, specifically for the V2.

I have found this thread (http://www.e-cigarette-forum.com/fo...vivi-nova-rebuild-tutorial-4.html#post6346382) but it deals primarily with the V1. Is there an equivalent step by step guide for the V2. Do I need to worry about the "hot legs" problem or is this not such an issue on the V2?

Regards,

Jim

 

[sailorman]

I've done it on a V2 and the "hot legs" issue didn't come up. I wouldn't worry about it in any case.
I haven't read that tutorial, it's pig simple to do. I watched a couple V1s get rewicked on youtube.

The only difference from the V1 is that there is a small silica sleeve surrounding the coil. It has slots in it for the wick to go through before you set it back in the cup. Other than that, it's the identical procedure. The little sleeve is kind of brittle and I'm not entirely sure of what function it actually serves. It's probably just there to fall apart and discourage you from rebuilding it. I re-used it, but I'm doubtful whether it'll hold up very long. If it doesn't, I'm not going to worry about it. The only thing I can think that it does is insulate the cup somewhat so it doesn't get hot enough to burn or melt the silicone sleeve. It really seems like a solution in search of a problem though.

Check the Youtube vids. There are at least 3 of them. One is using cotton wick and it's the best one to illustrate the whole procedure. They're all doing it on a V1, but it's the same process.

 

[jimwormold]

Thanks sailorman!

What about equipment, what do I need - eg wires and wick? Kanthal, no resistance or normal wires, cotton, bamboo or stainless steel mesh? Do you have any recommendations?

Is it worth the trouble? Am I going to get hooked?

Jim

 

[sailorman]

Haha. You need a pair of small needlenose pliers or strong fingernails, a needle, an exacto knife or scissors to cut wick, maybe a pair of tweezers. That's all I had for equipment, less the strong fingernails.

I used Kanthal-A, 34 ga. You can use 32-36Ga in Kanthal. You could use nichrome if you had to. For wick, I suggest short fat wicks over long ones. 2mm dia. single strand silica wick or cotton. If you use cotton, boil it for 15 minutes and let it dry first. You can't ever let it dry out in the tank, so no "dry burning" to clean the coil. Just replace it when it gets gunked up. You don't need non-resistance wire. The leads are so short that the amount of added resistance is negligible. It would take as much resistance wire to make the connection as the length of the non-resistive part of lead. If you run into the "hot leg", you might want to use it, but it's overkill, IMO.

Yeah, it's worth it. It took me longer to find a needle around here than it did to re-coil my first one. Oh, some way to check the resistance when you're done is handy. I used 6 wraps of 34ga. Kanthal and ended up with 3.7ohms, which was higher than what I was shooting for. Lucky for me I use a VV, so I didn't care. But next time, I'll use 5 wraps and that should bring it down to right around 3ohms, which is what I wanted. Once you figure out that part, you're in good shape and you might very well get hooked and start recoiling brand new heads just for the helluvit.

 

[jimwormold]

Once again thanks for the reply and extremely useful information.

Excuse my ignorance, but how does the V2 avoid the burning silicon/rubber issue caused by the hot legs?

Thanks,

Jim

 

[brudercolin]

I had the same problem with my ViVi v2, which apparently has wicking/coil problems. The v2.5 was released recently, you can get it from gotvapes.