? Leef Body / Surefire Compatibility Problem ?

TKO

Enlightened
Joined
Oct 21, 2007
Messages
204
I just purchased a new production run Leef 2 X 18650 body from Lighthound, mounted a Surefire bezel with a P91, loaded two freshly charged 1850's, screwed on my tailcap from my 6P down tight and no light.:huh:

So, I look and the threaded portion of the Leef body that accepts the tailcap is "missing" about 3/32" of thread compared to my Surefire body and this won't allow the tailcap to screw on far enough to allow the contact insert in the tailcap to make contact with the lip of the battery tube. Pushing the button forces contact, but I have no constant on capability.

Here is a picture where the shelf below threads is lined up LEEF on right:




Here is a picture with the battery tube is lined up LEEF on right:




Could someone else with the 2 x 18650 Leef body from a prior production run and a 6P or 9P check their threads and post?

Lighthound advises that the following are compatible:

Fits SureFire C series heads and tailcaps
Heads - KL3 / KL5 / Z44 / Z32 / M2 Bezel / G&P Bezels & Drop-Ins
Tailcaps - SW01 / SW02 / z41 / z48 / z49 / z58 / z59. Also fits G&P A.I. Strobe Tailcap.

Thanks In Advance.
 
Last edited:
I can't see those pics BTW.

Try a battery magnet to fill the gap or use a blob of solder as a permanent solution.
 
If I were you I would try contacting Leef through pm or lighthound, I remember him having some problems with botched machining, I don't know if that included his 18650 bodies though. Make sure that there is no anodizing on the bottom of the body where it is flat it should be dull aluminum colored on the end where there is an electrical path. Also how large is the gap between the tailcap and body when tightened down fully?
 
Last edited:
I can't see those pics BTW.

Try a battery magnet to fill the gap or use a blob of solder as a permanent solution.

The problem is not the contact between the tailcap spring and the negative battery end, it is between the tailcap insert and the lip of the battery tube. You can not screw the tailcap down far enough to make the connection due to a lack of available threading, so battery magnet and/or solder is not the answer here, but thanks.

Pictures should be fixed.
 
Last edited:
OK I get it now.

My leef body came with a split ring spacer for this sort of thing. I don't know if it would work in your situation though.
 
65535 -

I think that I fixed the pictures?

I have an electrical connection. I have light if I push end cap button. I can not screw the tailcap down far enough for "constant on mode" though.

The gap between the tailcap and the body is approximately 1/16" . . . it is not bottoming out on the body; just running out of threading.

 
Last edited:
Ok, take your tailcap and a tooth pick, there should be metal tabs on the tailcap silver colored that are cut out off the metal backing, use the toothpick to bend them up a little bit, that should fix the problem. If you have small needlenose pliers that fit in the holes drilled in the tailcap on the outside, you can unscrew that and take the switch out, should be easier to bend the tabs up that way. (I don't know if 6P tailcaps have the holes)
 
Last edited:
Ok, take your tailcap and a tooth pick, there should be metal tabs on the tailcap silver colored that are cut out off the metal backing, use the toothpick to bend them up a little bit, that should fix the problem. If you have small needlenose pliers that fit in the holes drilled in the tailcap on the outside, you can unscrew that and take the switch out, should be easier to bend the tabs up that way. (I don't know if 6P tailcaps have the holes)

I think we are talking about two different tailcaps:










I tried a tailcap off a Surefire 6Z and it, too, will work with the momentary button but will not screww down far enough for constant on.
 
That is an old tailcap, you will either have to contact Leef about it, I have the U2 18650 body, and it works fine with twisties, but I can't think of a good way to fix your problem.
 
That is an old tailcap, you will either have to contact Leef about it, I have the U2 18650 body, and it works fine with twisties, but I can't think of a good way to fix your problem.

Yes it is old, my 6P was an original round body.

The tailcap off the 6Z that I tried is new production though. the threading on the 6z was the same as was my 6P . . . unfortunately, both had longer threading than the Leef.

Thanks for responses.
 
The split ring goes inside the tailcap and acts as a contact between the switch and bottom of the tube.
 
The split ring goes inside the tailcap and acts as a contact between the switch and bottom of the tube.

Did your split ring come from Leef or Lighthound?

I understand now how it would work, but am surprised that it was not provided with my purchase if it was necessary to ensure compatibility.

I will call Lighthound in the morning . . . hope it is an easy fix.:thumbsup:
 
Did your split ring come from Leef or Lighthound?

I understand now how it would work, but am surprised that it was not provided with my purchase if it was necessary to ensure compatibility.

I will call Lighthound in the morning . . . hope it is an easy fix.:thumbsup:

Yes it was from lighthound. It was intended to go into an E series head but it should work for this too. It's really simple, just like a round piece of wire. You could probably make your own.

This is the tube I got. It's called a "C-ring" in the description.
http://www.lighthound.com/index.asp?PageAction=VIEWPROD&ProdID=2703
 
Please keep us updated. I'm also considering getting a similar LEEF body for a future project.
 
Mine came from a newer 6p and works good

I did have to double tap mine to get it to light up,
then just twist while you have the momentary held on.

It stays on this way for me.

Good luck,
 
Mine came from a newer 6p and works good

I did have to double tap mine to get it to light up,
then just twist while you have the momentary held on.

It stays on this way for me.

Good luck,

I'm a bit confused. Does that mean that pressing the tailcap switch for momentary on, is unreliable or problematic?
 
something leads me to believe Surefire redesigned their tailcaps between old and new generations and that older tail caps are not compatible with current productions.

LEEF bodies AFAIK are made for the current productions
 
I'm a bit confused. Does that mean that pressing the tailcap switch for momentary on, is unreliable or problematic?

I have had no problem with the momentary on function. It works fine.
 
something leads me to believe Surefire redesigned their tailcaps between old and new generations and that older tail caps are not compatible with current productions.

LEEF bodies AFAIK are made for the current productions


I hope that it is just an old design vs new design issue. I will gladly purchase a new SF tailcap if that would rectify the situation.
 
TKO, you're probably right, the tailcap isn't screwing on far enough for it to contact the rear end of the body. To make sure, just ascertain that the body's rearmost edge is clean -- no anodizing on it.

I suppose this has to do with production tolerances or a slight dimensional change by SF. I'll see if I have a spacer clip that will fix the problem. If so, I'll send it to you.

Of course, the Hound stands behind his sales.
 

Latest posts

Top