Kayfun Prime problem, please help

[Thomas666]

Hello everyone,
I`m new here but will appreciate a help from an experience users.
I got me new kayfun Prime (original) and heard so much about it not leaking at all but I have a big problem when I fill in a tank.
Every time I open a top cap to fill in my coil as well as air vent base overflow horribly.
I do close the juice control fully before filling up but this not help at all.
Any idea what do I do wrong or where the problem is?
510 screw is firmly done.
I would appreciate your help as I`m going mental!
Thank you!

 

[Nailz]

Is it leaking when you are fill it or after?

Can you show a picture of your deck with wick in? Can help to see if any problems there.

I've had the prime since they came out and used daily as mine doesn't leak.

 

[evan le'garde]

A thread dedicated to the "Kayfun Prime" : Authentic Svoemesto Kayfun Prime

Ask those guys over there. They'll definitely be able to help you out.

 

[untar]

It sounds like an o-ring seal isn't in place or has a tear. Have you checked all o-rings?
5,8,10,11,17,19,21,22,24,25
Would check 10 and 11 first and make sure the 510 screw is all the way in and not loose.

 

[Baditude]

I had a similar problem with my Kayfun Lite Plus. Turned out to be a bad o-ring.

 

[BrotherBob]

I would appreciate your help as I`m going mental!

Welcome and glad you joined.
Could try simple first:

 

[Celt1]

As you are closing your juice flow control before opening the top, I would think it is an O-ring issue as well. A disassembly and inspection of them should show something. Right now I have 6 Prime clones with juice in them, and not one is leaking, so it is definitely not normal.

 

[Thomas666]

Hi guys,
Thank you very much for your replay, I really appreciate your help,
I have attached a pictures of my last build deck if you see that I do something wrong please let me know.
I have checked all the o-rings and they look fine to me, 510 screw is also all the way in.
When I do a new build and top up with juice is fine but every next fill I got a lot of gurgling so I have to blow into the chimney to get all the excess of the liquid out throw the air vent but its messy and I`m loosing a lot of liquid.
Brother Bob thanks for that clip I have never seen/heard of this so will try that first and see if this will work for me.
If not should I replace at least 10 and 11 o- rings for the spare one they send even so they look ok?

 

[Thomas666]

BTW, Mike I have try to post the thread in the Authentic Kayfun Prime but id did not allowed me, I got the info that the thread is close?
I have just changed the 8,9 and 11 o rings anyway but still could not see anything wrong with the old ones.
I should know by the evening if it worked and get back to you.
Thank you!

 

[untar]

You check o-rings by removing them from the atty and holding them in front of a window, then slightly stretching. It's the only way I know to reliably see if they have a tear.
The ones on the top are quite important as well when it comes to leaking (19,21,22).

You made sure there's an o-ring in your prime everywhere there's one on the sketch, right?

 

[evan le'garde]

You can find all the "O RINGS" you need here : Turbonoz

Just type in the dimensions in the search box.

 

[evan le'garde]

BTW, Mike I have try to post the thread in the Authentic Kayfun Prime but id did not allowed me, I got the info that the thread is close?
I have just changed the 8,9 and 11 o rings anyway but still could not see anything wrong with the old ones.
I should know by the evening if it worked and get back to you.
Thank you!

Go to "forums" .

find the forum "Heathers heavenly vapes" in the fomums list.

Or just click on this link : Authentic Svoemesto Kayfun Prime

 

[Mr. Relentless]

Might be a oring or some rtas leak when overfilled. When you screw the top on the juice has no where to go and is forced out. I have a sherman with long threads on the cap. Always forces juice no matter what I do. I just chain vape 3 or 4 times instantly after I fill.

 

[untar]

When you screw the top on the juice has no where to go and is forced out.

The Prime has a liquid control and a pressure relief milled into the threads as well as the body of the filling cap, that's about as good as a design can get for a top fill tank. Pretty confident overpressure as in other tanks without those features isn't the problem here.

 

[Thomas666]

Thank guys for all the input,
I do have a spare o -rings as they came with the tank.
I ll check all of them by the window as suggested but so far the problem is still there I`m afraid.
I went for a bicycle stroll around the town and when I came back I got a leak into the air vent again and a lot of gurgling - this time without even re-filling.
I have blown into the chimney and get an access out and its ok now but the problem is still there.

Untar - I only have a leak into the air vent/base. Do you think changing the top o -rings will have any sense? There is no leak at the top of the tank at all.
Also all the o-rings are in place however I did not unscrew that hex screw at the bottom - I need to buy
a proper size key tomorrow and see if there is anything there.
I have tried chain vaping straight after I re-fill or just firing the mode without taking any drugs but it looks like it`s just to much of the liquid and I cant get pass this.
Only think that works is blowing the air into the chimney and getting all the liquid out through the air vent.

 

[Hawise]

Hi Thomas666,

The Kayfun Prime is a great tank, and I'm sorry you're having such trouble with it. I would have guessed o-ring myself, but as that hasn't sorted it I'll just throw out a few thoughts so you can see if anything seems likely:

• How low does your juice get before you refill? I've occasionally had problems if it gets too low while I'm chain vaping. I think it overheats and thins the juice too much. If it starts leaking before I refill, it'll flood once I refill and open the juice flow control. I've resolved this issue by refilling shortly after the juice level starts dropping down the sides of the chamber. Not chain vaping also works.

• What's the ID of your coil? I think I've heard of some problems with coils over 2.5 mm.

• Are you lubing the o-rings whenever you rewick?

• Are you making sure your coil and wick are lifted off the block with the air flow hole and the rim around the hole? If any part of the wick or coil touches that rim, it'll wick juice straight down the airflow. From your pictures it looks like it's probably high enough to be clear, but I can't tell for sure.

• Does this happen all the time, or is it more likely to happen with an older wick?

That's all I can think of at the moment. I hope there's something in there that can help you out. Good luck!

 

[untar]

Untar - I only have a leak into the air vent/base. Do you think changing the top o -rings will have any sense? There is no leak at the top of the tank at all.

The top o-rings seal the tank against air, helping to create a low pressure - if air can come in the low pressure is lost and nothing prevents the tank from leaking. The low pressure is extremely important in a tank so those o-rings must be installed and undamaged.

Like Hawise suggests all o-rings should have a little VG on them so they slide well against the metal and don't stretch in some places.

After filling, how fast and how much do you open the liquid control?
Try to first only open it by a little (1/2) and then after a few hits as much as you need (but not over 2 full turns).
Also make sure your wick isn't touching the airflow even after screwing the bell (screw on and off and see where the wick is). Wick touching the airflow will also leak, there should be a little space between them.

 

[vapdivrr]

Looks like your forcing a bit to much cotton in coil and as a result the shoulders are a bit to bushy, so when you have a bunch of bush and it is close to the end or inside of the coil, juice can hit the last coil wrap and drip juice down near your airhole. If your orings are good, I suspect this can be happening. You really want the wick coming out from coil and going straight out and down ledge with no part of wick bunching up around that last wrap of coil. This excess wick bunch lessens with a smaller coil and I personally recommend 2.5 mm if yours is bigger. You also can spread out the coil a bit longer too or just add an extra wrap . And if you have a thinner juice, don't open jfc too much, 1.5 turns should be all you need. If you have the correct amount of wick in coil, you should see bubbles when opening jc at 1 turn, if it takes 2 turns to see bubbles, you can have to much wick stuffed in channels. Remember that those channels are small and although you may have the correct amount thru coil, you can get to much in tails especially with coils over 2.5 mm. That means after wicking, you may have to trim just the tails. Another thing to check is without the glass and juice, try threading chimney onto base and tighten all the way down, now look at the holes in chimney to make sure they are completely closed off. I have heard that some may be defective and when the juice control is screwed completely closed, they really are not because of perhaps a thread snot and if that's the case, you will get leaking or gurgling on every refill. Also make sure the tail lenghts are perfect, if they are not touching the bottom of ledge, you will definitely get gurgling. The tail lenghts also cannot be too long as this will inhibit wicking

Sent from my SCH-I545 using Tapatalk

 

[Thomas666]

Thank you guys for all your help,
I ll try everything that you have mentioned here.
I must admit this is my first tank that require a coil building however I have spend like 30 hours
(many of these on this forum) before I ordered and another 10 after it
It looks like I will need a degree to get things right ) and I thought I already know everything!
I do 2.5mm 6 wraps kenthal 28 - gives me about 1 ohm and I use cotton bacon version 2.0
Do you know of a good video link that shows the wicking correctly on Kayfun prime?
I think I saw yours vapdivrr few days ago.
I have watched a few but I might not get this right
I have also bought Fibre Freaks Cotton blend and Kendo Vape Cotton
Can cotton touch the inside walls of the chimney?
I do turn the liquid control on full as it looks to me that with the 70/30 VG that I`m using I don't get bubbles after 1 turn.
Everything is perfect when I do new coil/wick but as soon as I re-fill.....
I ll also try turning a little bit on the beginning and then slightly more but to be honest I have try to smoke after re-fill on a close liquid control for a few puffs but even then the gurgling was unbearable.
I ll check again the o-rings and wicking, see if my juice control is fully closed and so on.
Glad that I have a spare tank!
Thank you will keep you posted

 

[Thomas666]

Hawise - I have only lub the o-rings from the base down, I ll now make completely sure that I have enough space above the coil/wick but to be honest I always have enough space above the coils however did not pay so much attention to the wick not getting in there