np 22 and machine shop
- Thread starter pwrjetta
- Start date
Cheap and easy fix to smooth things up a bit is to goober the action full of metal polish (I like Solvol Autosol) and work the action back and forth for a while . You should be able to see the areas where the parts rub, concentrate on there.
The polish will wear away the rough edges of the areas making contact, and not touch the rest. As it works, it grinds itself finer and finer, and does not embed in the metal.
Not exactly the kind of work you'd do to something expensive, but it'll smooth the action up a little. Most of the Norinco's I have seen were pretty rough machined inside.
Then you have to spend about an hour cleaning it all out, which just about every 22 I've ever seen could use, anyway.
Take a look around the edges of the chamber. A couple JW-20's that I have seen to, were not functional out of the box because they had very sharp edges on the chamber. When the action was cycled the edge caught the lead of the bullet, either gouging in, jamming it, or cutting a large chunk off the bullet. Alittle smoothing and polishing fixed them up well enough.
If you feel competent to fiddle with the trigger, some work with some 600 grit sandpaper and a popsicle stick can go a long way to smooth things up. Stay awat from the actual sear/bolt interface itself unless you have someone to give you a bit of help, or you are absolutely positive of what you are getting into. For the most part, smoothing the areas where the trigger parts rub on each other goes a long way.
Cheers
Trevor
The polish will wear away the rough edges of the areas making contact, and not touch the rest. As it works, it grinds itself finer and finer, and does not embed in the metal.
Not exactly the kind of work you'd do to something expensive, but it'll smooth the action up a little. Most of the Norinco's I have seen were pretty rough machined inside.
Then you have to spend about an hour cleaning it all out, which just about every 22 I've ever seen could use, anyway.
Take a look around the edges of the chamber. A couple JW-20's that I have seen to, were not functional out of the box because they had very sharp edges on the chamber. When the action was cycled the edge caught the lead of the bullet, either gouging in, jamming it, or cutting a large chunk off the bullet. Alittle smoothing and polishing fixed them up well enough.
If you feel competent to fiddle with the trigger, some work with some 600 grit sandpaper and a popsicle stick can go a long way to smooth things up. Stay awat from the actual sear/bolt interface itself unless you have someone to give you a bit of help, or you are absolutely positive of what you are getting into. For the most part, smoothing the areas where the trigger parts rub on each other goes a long way.
Cheers
Trevor
