So my new VAMO started reading OHM's like 9.9ohm and certain 510 devices stopped working. This link on Reddit was posted in a thread here on ECF, it was a huge find for me so I wanted to give it more attention.
The problem is from over-tightening and pushing the center pin down too far. There is a small white gasket that needs to be under the center connection, this pushes up the center pin to make the connections. If the gasket is missing or the center connection is pushed into the gasket you will get issues with firing and ohm reading.
I used a blunt dental tool and carefully pushed the white gasket back under the center pin, and tightened my vivi very gently and it works like it should. I'm going to follow this advice and replace the gasket as it seems to be a great fix.
Here it is:
"I literally just went through this with my SS Vamo earlier this evening. I just received an AGR cartotank from Steammonkey and the 510/510 adapter piece pushed my center pin down into the washer. I screwed it on really tight which I guess isn't necessary. After the fix below I screwed it down as far as it would go and it didn't push the pin down again so I'd say its a success.
Here's what I did to resolve it and actually improve it.
- Remove the original washer (with tweezers.)
- Push up the center pin with a tiny screwdriver (or toothpick.) Work around the edges so its more or less up.
- Go to Home Depot (Lowes should have them too, OSH did not) and buy new #60 size washers (Plumbing section.) They are almost twice as thick and black. It was $2.47 for a pack of 10 or something.
- Cut the new washer in one spot with scissors
- With the tiny screwdriver / toothpick (this will probably be really difficult with a toothpick as it requires quite a bit of pressure) push the new washer down (hard) diagonally away from the center pin. You should feel and hear a light pop. I believe this is the washer either getting under the center pin or the threading on the inner wall.
- Continue to do this "threading" around the center pin in by pushing down on the washer diagonally in small increments from one side of the cut in the washer, to the other. The last 25% will be the most annoying as it gets harder. You want to get the washer under the center pin so act accordingly.
- Toward the end the center pin will be roughly 50% over the washer, and 50% under. Just keep threading around toward the other end of the cut you made. Finally when you feel the washer won't go under the center pin any further with this method, attempt to get your tiny screwdriver under the center pin on the side thats still under the washer and pop it over the remaining washer.
Tedious and annoying but it only took me 5 minutes. The new washer is thicker and tighter and shouldn't get pushed down again.
Edit: I read a less detailed version of this on ECF forums and that user said to cut the washer in half. I wasn't having luck with that and found it easier to do it with just 1 cut but you may want to try both to find the path of least resistance for you."
Here's the link to the thread: