Foggy scope

E

Eastman

Member
EE Expired
Rating - 100%
62   0   0
Location
New Brunswick
Hi Guys,
Just wondering if anyone can advise me! I have been given a Weaver V9 11 scope, and like the look of it. It says made in USA, and is a 3-9x40. The problem is that there is fogging in the objective lens. About 1/3 of the glass is fogged....probably a nitrogen loss or something? Apart from that, it is in excellent condition. It has the "micro-track" which I have heard good things about .
Any help/advice would be appreciated.
Thanks,
Eastman
 
.
The cost to have someone who knows what they are doing repair this scope is going to be at least twice what the scope is worth. It has to be disassembled, repaired, and reassembled carefully and correctly, and then purged with nitrogen.

The Weaver, while a fairly good scope for it's day, was made with technology that is now fifty years old. It is quite probable that someone took the eyepiece off of it, and moisture in the air replaced the nitrogen gas inside.

Since it was given to you, then you have nothing to lose if you want to play around with it. You could find a cardboard box that an extension cord with a light bulb will fit into. Take the eyepiece off the scope, and hang the scope and eyepiece in the box, about 8-12 inches above the light bulb. After about three days, any moisture in the scope or eyepiece should have been evaporated.

Then, you have to find a tank of nitrogen or other inert gas. With the scope near the bottom of the box, you then fill the box with nitrogen which, being heavier than air, will displace the air in the box and fill the scope. You then put the eyepiece end back on the scope while it is still in the nitrogen atmosphere of the box and screw it into the scope body. A SMALL bit of grease on the threads helps seal the nitrogen inside. Then, you HOPE that no other seals are damaged and the nitrogen leaks out.

You could even try it without the nitrogen purge. Just keep the scope inside the warm, dry box when you put it back together. This may or may not work and I would not really want to have an unreliable scope on a hunting rifle, especially in a damp or humid climate.
 
Last edited:
I'd say throw it away...it's likely to let you down when you most need it....you got it for a fair price considering the condition!
 
You must log in or register to reply here.
Back
Top Bottom