Lets bring this old EXO thread back to life!
Well it has finally happened, my EXO RTA was jumping resistance all over the place. A 65W vape on coil that jumps to 1.2Ω is a very pleasant experience, I'm still coughing... With each press of the fire button I could see the resistance going up on the mod. Checked post screws and removed/installed the single coil base a few times, but that did not fix the problem.
That night I contacted iJoy on their FB group page about a replacement base and chatted with one of their reps who informed me that a build/coil can change resistance. This rep was obviously just a Marketing/Social Media person who wasn't aware of any product issues so I really can't fault him for his answer. He also told me to send an email to iJoy service, since there are numerous people there who have been waiting months for replacement of defective products, I didn't bother with the email.
While sitting in the workshop I decided to take the EXO base apart and see what was what. It should be as simple as popping out the deck ring and I was later amazed how easy it was to do just that. The question was how to get that ring out, and luckily iJoy keeps the threading across most of their devices the same.
I also own a Limitless XL RTA and the XL2-S deck looked like a perfect candidate for the job.
View attachment 684719
I pushed out the plastic 510 post insulator from the EXO's base, screwed in the XL2-S base and set it posts down in the jaws of my vise. I set the jaws just wide enough to catch the JFC ring on but not damage it's threads. You don't need a vise, anything that would rest on the outer edge of the JFC ring would do like a large socket etc...
A 4mm rod or screw driver will fit down the 510 hole and a couple of gentle taps popped the deck ring and JFC ring free. I used a little fine emery cloth and sanded around the inside walls of the base where the deck ring fits. You don't have to make it totally shiny but more silver than black would be good. You are basically just scratching off the black paint in the area from the air slot to the top of the base, trying to expand the opening too much.
After the sanding and a quick wash, I put the JFC ring back on the base and pressed the deck ring still attached to the XL2-S deck back into the base with my vise. You could do this with a hammer or channel lock pliers if you were careful and made sure you pressed or tapped the ring back evenly.
The big test was to put my single coil deck back in and see if the resistance still jumped. No it did not, I put the base on another mod and the resistance was solid on it too. I bet I can even use the EXO with TC now where it would never work before.
I don't know how long this will last, but for now it has made a tank headed for the trash bin usable again.
The walls of the deck ring are not too thick, so you could take a center punch and put a couple of dimples in the side wall after you press it back together. That would make it fit tighter against the base and lessen the chance of it possibly loosening up down the road.
Cheers!