Hcigar Kayfun 3.1 leaking issues

[JamezC]

So, I've been using the hcigar kayfun 3.1 from Luxorvapes for a couple of months now without too many problems (besides some occasional leaking). However, recently it's been leaking out the fill hole profusely, as well as leaking from the 510 connection. I took off the collector cup and it was filled, so I cleaned it out and put it aside. I also fill from the top, I've checked the o-rings and they look fine, and I check the chimney each time I fill it to make sure it hasn't loosened up. It works fine for a few re-fills with no leaks and then it just starts all of a sudden, so, does anyone have any advice on how to fix this? Or if there's something I'm possibly doing wrong?

 

[suspectK]

Sounds like orings if your build isn't any different from when it wasn't leaking.

Make sure they're not pinched and seated properly.

If that isn't it, are you using the same liquid for each time it was working and leaking?

37, ph0n3 h0m3.

 

[JamezC]

Sounds like orings if your build isn't any different from when it wasn't leaking.

Make sure they're not pinched and seated properly.

If that isn't it, are you using the same liquid for each time it was working and leaking?

37, ph0n3 h0m3.

Nope, same build, just a single micro coil around 1.5 ohms. And yeah, I've been using the same liquid in it for about a month now, just some 50/50 DIY. I checked the top o-ring and it looked fine, it wasn't pinched in any way that I could see. I'm thinking it might just be the fill hole, even when it's working great sometimes a few drops will leak out.

 

[levisdaddy]

I have the same issue lately with my 3.1
i am trying to find a way to plug the screw hole to prevent the leaking as i too fill from the top.

solutions welcomed

 

[VapieDan]

I presume these are side fills. There is no check valve. I plugged mine and fill from the top. Had issues there are well. Now only using bottom fill Russians with screw covering fill holes. Fill from the bottom and get max juice in it with no leaks or gurgles.

 

[levisdaddy]

just read a solution an another thread.
the idea was that the vacuum seal is being broken perhaps by the top o-ring.
i removed the top, pushed out the ring and placed at the top of the chimney. without the drip tip i affixed the top while looking down to assure the top of the chimney went thru the oring into the top cap. within a minute, the leaking stopped!!!!

 

[doots]

you can always try Teflon tape on your fill screw. should stop any leaking all together.

 

[JamezC]

I presume these are side fills. There is no check valve. I plugged mine and fill from the top. Had issues there are well. Now only using bottom fill Russians with screw covering fill holes. Fill from the bottom and get max juice in it with no leaks or gurgles.

Yeah they're side fills, I usually just fill mine from the top though. I've tried both ways of filling with the same result

 

[JamezC]

you can always try Teflon tape on your fill screw. should stop any leaking all together.

Thanks for the tip, I'm probably going to try plugging it up and see how that works for me. Times like these is when I rely on my trusty drippers lol, I do want to get it up and working (without leaking that is).

 

[JamezC]

just read a solution an another thread.
the idea was that the vacuum seal is being broken perhaps by the top o-ring.
i removed the top, pushed out the ring and placed at the top of the chimney. without the drip tip i affixed the top while looking down to assure the top of the chimney went thru the oring into the top cap. within a minute, the leaking stopped!!!!

Thanks for the reply, I'll try that first and if that doesen't work out then I'll just plug up the fill screw hole, that will be my last resort though

 

[levisdaddy]

i spoke (typed) too soon.
the leak returned.
i now think the screw is just of poor make/design.
gonna look into plugging it. i was thinking superglue, which i understand would be irreversible. but would that be a bad thing?

 

[Asmo6]

The 3.1 clones all seep from the valve over time.

The BEST thing you can do (IMO) is - rinse off the deck with water. I have noticed as you vape the tank down, the juice in there starts to turn color as the wick gets burnt up. It is also slightly thicker, and settles toward the bottom of the KF. This would gravitate to the feed shoot directly behind that valve. A quick rinse of the deck when you swap wicks, or otherwise between a full empty and a full fill. Will keep the valve from leaking or seeping as much IME. It seems like the different viscosity juice likes to leak more than my normal clean perfect juice.

Option B, is - yes. Just get a Russian or equiv without the needle port. Thread off the atty and fill from the bottom. This is actually what I have done.

Although I still think the 3.1 has way better airflow. And is a much less stifled vape.

And I already ran a drill bit down that air hole... it's just, not as good.

Top filling kayfun's is less than ideal. I don't see that as a real solution honestly.

 

[anthonyjl]

I top fill both of mine and never have much problem at all. I vape them down until its empty then just fill it. I make sure to cover the air hole while filling. Its only slightly less than ideal because you should make sure its empty first to avoid issues.

Honestly, I am not 100% positive how to use the side fill lol

 

[Delta4Zero]

I had the same problem with my Hcigar Kayfun 3.1 right off the bat. I found several solutions, most of which are listed on this forum, implemented them with no success. Sometimes the leaking wasn't that bad, sometimes none at all after vaping on it for several minutes and then sometimes it leaked more than an 82 year old man on a trampoline. The leaking was very inconsistent even though the builds and juice were identical time after time.

I was just about to plug the fill hole when I decided to try and find some sort of component print or drawing out there. I didn't find anything that showed a break down of components for the fill hole assembly. Just a picture someone took and posted on Google. At least then I knew what the parts were.

So I removed the hollow set screw. I'm guessing it's main purpose, besides being an E-liquid pass through, was to capture the O ring, ball bearing and spring (that's what in there, in that order, from the outer diameter going inward) I then carefully removed the O ring. That's when I noticed there was no ball baring in there to begin with. Just the O ring and spring. I'm guessing that the times I vaped it and it didn't leak much after forming the vacuum inside was because part of the O ring was actually plugging the hole that lead to the deck.

I bought a 2.5mm ceramic ball bearing from Amazon, link is below. I bought this one because of it's high heat and corrosive/acidic resistance. I would be afraid to put a cheap plated steel one in there because being a moving part it will eventually wear and who knows what the effect of vaping electro zinc has...superpowers..mayyyybe but most likely a premature death. I'm sure a good quality 300 series stainless steel one would be fine to. The ceramic bearing was the only one where I could buy just one.

I re installed the assembly, this time with a bearing and with a little adjusting of the hollow set screw no more leaking! So now I still fill it from the top. Why? because I'm stupid.

Hope this helps.

Ceramic Ball Bearing link; Amazon.com: 2.5 MM CERAMIC BALL, Al2O3, GRADE 10, (EA): Industrial & Scientific

 

[levisdaddy]

thats great bruva, thanks!
so, can i assume that consistent fill hole leaks are most likely caused by the missing BB?
Would the easiest/cheapest solution just be to plug with glue/epoxy?

I had the same problem with my Hcigar Kayfun 3.1 right off the bat. I found several solutions, most of which are listed on this forum, implemented them with no success. Sometimes the leaking wasn't that bad, sometimes none at all after vaping on it for several minutes and then sometimes it leaked more than an 82 year old man on a trampoline. The leaking was very inconsistent even though the builds and juice were identical time after time.

I was just about to plug the fill hole when I decided to try and find some sort of component print or drawing out there. I didn't find anything that showed a break down of components for the fill hole assembly. Just a picture someone took and posted on Google. At least then I knew what the parts were.

So I removed the hollow set screw. I'm guessing it's main purpose, besides being an E-liquid pass through, was to capture the O ring, ball bearing and spring (that's what in there, in that order, from the outer diameter going inward) I then carefully removed the O ring. That's when I noticed there was no ball baring in there to begin with. Just the O ring and spring. I'm guessing that the times I vaped it and it didn't leak much after forming the vacuum inside was because part of the O ring was actually plugging the hole that lead to the deck.

I bought a 2.5mm ceramic ball bearing from Amazon, link is below. I bought this one because of it's high heat and corrosive/acidic resistance. I would be afraid to put a cheap plated steel one in there because being a moving part it will eventually wear and who knows what the effect of vaping electro zinc has...superpowers..mayyyybe but most likely a premature death. I'm sure a good quality 300 series stainless steel one would be fine to. The ceramic bearing was the only one where I could buy just one.

I re installed the assembly, this time with a bearing and with a little adjusting of the hollow set screw no more leaking! So now I still fill it from the top. Why? because I'm stupid.

Hope this helps.

Ceramic Ball Bearing link; Amazon.com: 2.5 MM CERAMIC BALL, Al2O3, GRADE 10, (EA): Industrial & Scientific

 

[JamezC]

thats great bruva, thanks!
so, can i assume that consistent fill hole leaks are most likely caused by the missing BB?
Would the easiest/cheapest solution just be to plug with glue/epoxy?

I've been contemplating about doing that, at this point I'm thinking of just getting rid of it and getting myself another RDA lol. After having it sit around I decided to give it a try, got a great no-leak vape for about a good 20 mins...lol now it's back in it's case again all cleaned out

 

[Delta4Zero]

thats great bruva, thanks!
so, can i assume that consistent fill hole leaks are most likely caused by the missing BB?
Would the easiest/cheapest solution just be to plug with glue/epoxy?

You know, it would of been way easier just to plug the hole and move on. Something most sane people would do. But the dominant German DNA in me can't just let it go that easy. The Irish DNA just sits back drinking and laughs at me while I scour the internet for a freaking 2.5 mm ceramic ball bearing. The Polish part is in the corner, staring intently at a light bulb, then glancing at an empty socket on the ceiling then back at the light bulb...he does that a lot.


I did it also because it seemed so many people were in the same situation and I felt compelled to find a solution. I'm sure these can leak for various reasons but if you're having a persistent leak and you are able to confirm that the BB is missing then that may be your fix. I like the stuff I buy to work as it was engineered to. If it does I'm happy and then immediately look for easier ways to work the thing, hence top filling. I just ordered the Rose V2 yesterday so the Hcigar kayfun complete with it's repatriated ball will be handed to the Polish guy in the corner soon. It will give the Irish guy something else to laugh at.


So to answer your question levisdaddy, yes it would be much cheaper and less time consuming to just fill the hole. If you decide to do that I would look for something that's at least "food grade" or "surgical grade" if its epoxy or better yet a 2.5 mm (not sure what the thread pitch is) st st socket set screw with some sort of locking feature and replace the hollow set screw with it. Remember, whatever you put in there may break down and end up in your lungs after being exposed to heat.




Good luck!

If I come across a suitable set screw I will post it.