sks leak/hole

[po_the_drum]

Hi
question to expert.
it's hard to explain, i will do my best.

I have a russian sks, i see today a little hole in the tube where the piston extension is. The part under the front sight assembly. The gas tube and gas piston are ok. whent i clean my rifle, i have a little leak a this place.

does this can affect my sks in the future? Seems to be at the place where the bolt carrier finish. i wish my explain are ok for you to imagine it.
i take picture but, very difficult to see.
thank very much

 

[smartbomb]

I think I know what you're talkin about. But I need a pic to make sure it's what I'm thinking it is.

 

[polaris]

don't plug the hole...

this little hole is meant to be there; it lets the compressed air escape once the piston retracts when the rifle is fired.

If you plug it, your rifle wont cycle properly.

 

[PerversPépère]

Must be a vent hole for venting the excess gases once the piston head has passed this point and transferred the impulsion to the secondary actuator and carrier.
PP.

 

[smartbomb]

don't plug the hole...

this little hole is meant to be there; it lets the compressed air escape once the piston retracts when the rifle is fired.

If you plug it, your rifle wont cycle properly.

I was thinking the same thing.
Though some of the SKSs don't have this hole... not sure why.
The ones I personally own don't have it.

 

[po_the_drum]

it's like a breche, no a real hole.

 

[po_the_drum]

if i put light at the bottom, i see the breche. iT's where the bolt carrier stop

 

[PerversPépère]

Safety breech vent just in case a round poops the wrong way?
PP.

 

[saskgunowner101]

Are we sure it's not a "real" hole? I recall leaving a folded sheet with blackened burn like marks after using said sheet for a front rest. Whoops.

 

[Norton]

I’m guessing he is saying there is a crack in the gas tube where the gas piston extension fits, in front of the rear sight. When the action is closed the stripper clip guide on the bolt carrier sits at the sides on that section of tube.

(a crack located under the letter "g" in the "figure 16" note shown below)

 

[Satain]

Are you talking about the bleader hole's on the front gas tube?

If so it's a good thing that they are there.

 

[po_the_drum]

hey norton youre right, thank a lot, but the crack is under the letter E (figure 16)
is a normal issue?
it's dangerous?
does i have to welding?
thank you all the gang

 

[po_the_drum]

(a crack located under the letter "E" in the "figure 16" note shown below)

[/QUOTE]

 

[PerversPépère]

hey norton youre right, thank a lot, but the crack is under the letter E (figure 16)
is a normal issue?
it's dangerous?
does i have to welding?
thank you all the gang

I don't think it is dangerous. Since that part of the sight base is a casting there may be a flaw from the casting process but that housing only contains the secondary actuator rod and its spring. No gases ever reach that point, they are bled off long before that.
PP.

 

[Norton]

po_the_drum, if the break/crack that you are referring to is the small gap that this arrow is pointing at, it is normal and is simply the seam line between press fit/shrink fit parts.

 

[Dsiwy]

po_the_drum, if the break/crack that you are referring to is the small gap that this arrow is pointing at, it is normal and is simply the seam line between press fit/shrink fit parts.

Nortons a 100% correct

You guys get worried over the sillyest things lol

 

[po_the_drum]

yes norton, exactly.

Thank a lot for the pic and the information. You are very usefull for this forum, thank