First rebuildable, what the heck am I doing wrong?! Any tips welcome!!

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KalebK

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Hey everyone, so I got my first rebuildable (Russian 91% clone) and I am having nothing but problems with it. The first few hits are GREAT, but after that it turns to burnt nastiness!!! I am using cotton for a wick. I have watched several YouTube videos about how to set it up, I even drip some before I put the tank on and fill it, which works great, so then I put the tank on, fill her up, the first few hits are outstanding and then it all goes downhill from there. Help please!
 

Papa_Lazarou

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Pics would help.

From what you describe, you've got a wicking problem - the cotton is being starved of juice and then burnt. There are a few potential reasons for this (again, pics would help), but the often it's because you've got too much cotton. Less (waaay less) is more with this material.
 

Tmartin63

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Kaleb, I had the exact same issue when I first got mine. The amount of cotton used plays a huge part in making it work correctly. I wrap my coils on a 1/16 drill bit. When you unroll the cotton ball cut about one inch off (across the grain). Then trim about 1/8 inch off of that piece (with the grain). You want to slightly roll and lightly pack the cotton and being to point on one end. It should slide easily into the coil and pull thru will little to no resistance. If it binds, its too much. You will be surprised at how little it takes. Then you want to trim the ends so they just touch the top of the juice channel. I add a little juice and stick it to the side of the base on both sides, then saturate the rest of the wick. Then install your chimney making sure you don't move the wicks. If you do, once the chimney is installed I use the needle cap on my juice bottle to "recenter" them. Then install the chimney cap. Then install the tank. At this point I have learned the best way to fill it is to screw the airflow all the way in. (Some people on here hold their finger over the holes but mine always leaked that way.) fill with juice leaving about an 1/8" room at the top. Start screwing on the top cap making sure the oring is in place. Once you get it started flip it upside down and tighten all the way. Now unscrew the airflow to the desired setting. When you take a draw on it you should see bubbles flow upwards from one of the juice channel holes at the bottom. From time to time you may even have to hold your finger over the air hole and draw, just to prime it. But be very gentle on your draw or you will flood it. Mine crackles and pops when I fire and I like that. I know when it may need a prime because it will stop crackling. However since I started filling mine by closing the airflow screw all the way, I have not had one single issue. Hope this helps cause I feel your pain. I went thru that issue for the first two weeks and almost gave up. You will get it just keep working on it.
 
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ElConquistador

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Mine did that once. Got it all rebuilt as usual and filled, sat down and enjoyed it for about 10 minutes, and all the sudden I got a horrible burned hit that about choked me. I am convinced I used just a little too much cotton, even though I've made a million of them. No problems since, but I've been extra careful to use less cotton than I think I need...like, about half as much.
 

yotogi

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Hey everyone, so I got my first rebuildable (Russian 91% clone) and I am having nothing but problems with it. The first few hits are GREAT, but after that it turns to burnt nastiness!!! I am using cotton for a wick. I have watched several YouTube videos about how to set it up, I even drip some before I put the tank on and fill it, which works great, so then I put the tank on, fill her up, the first few hits are outstanding and then it all goes downhill from there. Help please!

I would make a substantial bet that your cotton wick is too thick/dense. You really need so little the first few times that I set mine up well, I was sure I didn't have enough wicking. Pics would help for sure, but what you describe is a classic description of too much wicking material in the coil, which leads to choking and dry hits.

It is possible that you have a vacuum leak, but I doubt that is what you are experiencing here. Try less wick first.
 

bludogg

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If it's properly wicked, you can cover the air inlet and pull. You will get a rather large bubble and have now flooded your chamber a little...BUT, if this is not what happened (if I understand you correctly) then your channels are blocked or possibly (but unlikely) your coil is too close to the inlet coupled with something about your wicking blocking airflow out of the inlet.

Edit: I think you have one of my initial problems and may have seen the same tutorial I did that lead me astray. You don't really want to be real close to those channel inlets, nor in that channel well. It needs to be 'close enough' to the channels rather than 'as close as possible'. While the two ideas are ambiguous enough to mean the same thing, to a new user it directs their attention to entirely opposite ends. I think you probably just need to back off your channels.
 
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ElConquistador

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I always run my wick through the coil, then stick them straight up and install the chimney, cut them off about even with the top of the chimney, then kind of push the tail ends of the wicks down onto the deck, AWAY from the juice channel, so only a little bit is actually laying on the deck. Leave plenty of space above those channels!
 

Lessifer

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I always run my wick through the coil, then stick them straight up and install the chimney, cut them off about even with the top of the chimney, then kind of push the tail ends of the wicks down onto the deck, AWAY from the juice channel, so only a little bit is actually laying on the deck. Leave plenty of space above those channels!

This is what I do too, it's just easier than trying to precisely lay your wick tails down, and making sure they don't get caught on the chimney when you're screwing it down. I've never had an issue this way.

OP - What mix of pg/vg are you vaping? Do you have the airflow completely open? I'm going to reiterate this because I don't think it fully came across. The airflow control is not just there to get the type of draw you like. In a gravity/vacuum system, the airflow controls the juice flow. If you're not getting enough juice to your wicks, you need to tighten the airflow so it creates a vacuum when you take a pull. If you're flooding your chamber, you need to open the airflow up so it creates less of a vacuum.
 

KalebK

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This is what I do too, it's just easier than trying to precisely lay your wick tails down, and making sure they don't get caught on the chimney when you're screwing it down. I've never had an issue this way.

OP - What mix of pg/vg are you vaping? Do you have the airflow completely open? I'm going to reiterate this because I don't think it fully came across. The airflow control is not just there to get the type of draw you like. In a gravity/vacuum system, the airflow controls the juice flow. If you're not getting enough juice to your wicks, you need to tighten the airflow so it creates a vacuum when you take a pull. If you're flooding your chamber, you need to open the airflow up so it creates less of a vacuum.

This post helped me a lot! Thanks! All my juices I use are 50/50.
 
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