Kayfun 3.1 fill port

[TruckinVaper]

I love my 3.1's but one of them has developed a problem with the fill port. I'd noticed on it's last build it had gone all gurgly on me and paying closer attention I could see that after taking a draw a bubble was rising through the tank as you'd expect but it's not coming from the juice channels, it's coming from the fill port. It's not so bad that juice leaks through it, in fact I've tried flushing it out and although water passes through it easily in the right direction, too easily, it won't pass through it the other way. It's like the valve is working but the tension of it isn't strong enough and it's ruining the vacuum of the tank. Anybody come across this before, I'd heard of them sticking and not being able to fill them through it but not like this. Does anyone know how this can be sorted? can the valve be removed and fiddled with?

 

[TruckinVaper]

Sorry to bump this but someone must have come across this problem in the days of old.

 

[lez]

There is a small hollow grub screw which holds the port in, use a small screw driver or allen key to tighten it. Dont overtighten it or it will render the port useless.

 

[Tubbyengineer]

On the Kayfun 3.1 the fill port is a small ball bearing pressed against a push fitted seating ring by a small spring, after a fair amount of use the spring starts to fail and the port leaks air into the tank, As far as I am aware no one has been able to fix the fill port, it would need a new base, these can be bought from Svoe mesto or Fasttech. the small screw on the base is the airflow screw and has no connection to the fill port. It's possible some clones use a screw in fill port but I've never seen one...

You might try doing the whole, strip down soak in very hot water and then flush the fill port with a luer lock filling tip routine...

 

[TruckinVaper]

Thanks guys. I've tried the whole stripping and flushing routine with no success. I have both genuine and clone 3.1's, this one is a genuine, the clones a can get an allen key to unscrew the port but no luck so far on the genuine one with the problem. To be fair I keep meaning to take the base to work where I'd have more tools available to tackle it but if it's press fitted I have a feeling I'll be bang out of luck. I don't want to give up on it though, the airflow and juice channels are just spot on and the ease of build and flavour are great on it. Worst come to worst and I'll just block the fill port off somehow and just use a Lite V2 top cap and my Kayfil tool with it all the time.

 

[Tubbyengineer]

Thanks guys. I've tried the whole stripping and flushing routine with no success. I have both genuine and clone 3.1's, this one is a genuine, the clones a can get an allen key to unscrew the port but no luck so far on the genuine one with the problem. To be fair I keep meaning to take the base to work where I'd have more tools available to tackle it but if it's press fitted I have a feeling I'll be bang out of luck. I don't want to give up on it though, the airflow and juice channels are just spot on and the ease of build and flavour are great on it. Worst come to worst and I'll just block the fill port off somehow and just use a Lite V2 top cap and my Kayfil tool with it all the time.

If you have acces to canned air blowing the valve through fom outside then inside combined with a protracted ultrasonic bath might help, certainly nothing lost...

 

[TruckinVaper]

If you have acces to canned air blowing the valve through fom outside then inside combined with a protracted ultrasonic bath might help, certainly nothing lost...

I don't know about canned air but we've got the airline we use for blowing up my truck tyres

 

[Tubbyengineer]

I don't know about canned air but we've got the airline we use for blowing up my truck tyres

That might be a bit much, I was thinking more along the lines of the Air duster cans used for computers...