The gap between the head and the bezel is not the problem. It's the fact it's not even. One side has almost no gap, the other has a fairly large gap. Either the bezel was cross threaded, or the head was cut or threaded off square. Either way, I'm not a happy camper.
The threads weren’t cut concentric to the aluminum head. In other words the aluminum head has to be put in a professional grade cutting/boring machince and on what we used to call a fixture to lay the part on. The part or in this case piece of aluminum is then clamped down to hold it to where it can’t move. The threads are then cut by probably a carbide insert and have to be cut in parallel to the piece of aluminum. That is what concentricity is. That wasn’t done here apparently on a lot of these EA4’s.
I use to work at Dana Corp and machined and assembled differential cases. When we machined the case for the sidegear dimensions, and the machine was set up correctly it would cut top and bottom sidegear concentricity dimensions to under .0005 total runout for each sidegear throat. That’s almost as accurate as drilling a hole for true roundness with a very expensive professional drill bit.
my ea4 has a poltergeist… seriously… i shook the living hell out of it last night to see if it rattled…and nothing…. now i picked it up tonight and i heard a small noise… so i shook it gently and i heard a little rattle from behind the switch …
DAFAQ?
its not that bad - i dont mind living with it since it doesnt really effect anything and i dont go around shaking the crap out of my lights.
if anyone asks me what the rattling noise coming from my flashlight ill just tell them its the flux capacitor
If you get the end of a leather belt around the bezel, then grip the belt/bezel in one hand and body of the light in the other, you should be able to undo it.
I did this with my olight s10 and it worked nicely.
Mine has the rattle issue, the bezel has no problem, it has an even gap.
I have it from Illumination Supply.
Craig said it may be a loose screw inside.
What is the proper tool to unscrew the bezel?
I have tried shoe rubber, not worked for me.
I took apart a few EA4s which have the rattling problem.
The culprit is the white delrin ring
I’m not entirely sure as to the purpose of the ring (other than to fill up the empty space in the light, but some are ever so slightly thinner than others, and cause the rattle. This does not change the reliability of the light at all.
yes, it’s right below the reflector. However, due to the size of the reflector keeping the reflector in place
and the centering ring around the LED, this seems like a bit of overengineering on Nitecore’s part.
which bit them in the backside, lol.