instead of dremeling i found you can heat the the nozzle containing the o-rings and then using pliers to slide it back in forth over the cylinder head till the o-rings are stretched to where they are loose enough on the cylinder head to function properly
I'm having trouble with my piston head (i think that's the blue colored part, not sure) The o rings are literally flat i added teflon tape to fix it temporally because it has a huge Air-leak. My aeg started shooting from its original 380fps-400fps to 240fps-280fps (with .20s) which is pretty lame, i was able to manage to play with it, but i still want to fix it since sometimes people don't even feel the bb unless i spray the hell out of them and they still say they didn't felt anything. lol I can change the o-rings? I tried taking them out but i couldn't they seem glued to the piece, do i have to buy a new one?
You must be talking about the cylinder head. Have you checked that it is actually leaking there? Your fps drop is too big to be caused just a minor leak there, I would say that it is something else causing your issue. But if it really is leaking there massively, I would recommend you to put the tape under the O-rings and grease the O-rings well before installation. Have you checked everything else in your gun?
Maekiii I did checked other things but everything seems in place. I expanded the piston o-ring and did fixed up a little bit the compression but it was still leaking air through the cylinder head. I added the teflon tape to it and now the compression is perfect. But i can't take out the piston head o-rings to replace them, they seem glued. I don't know if that's normal and i simply should buy a brand new one or there's something wrong in it, since it's my first aeg i'm unsure about it. I think the teflon tape might be dangerous at long term-use, not really sure so i want to fix the piston head. Can the piston head o-rings be replaced?
Last time I had this, I just took a really small pen file and made the groove the O-rings sit in a little deeper. I think that may be preferable, just because it doesn't risk the air seal as much.
Intresting.. That sounds a little riskier to me actually. You have less control of the material removal, so it will be inconsistent. Plus that way you might make the O-ring channel wider, meaning that the O-ring will have slop, that can cause leaks. This method of mine is totally risk free if you do it patiently.
Helpompi on vaan Lämmittää o-rengasta käyttämällä sytkäristä liekkiä suuttimen läpi, ja nopsasti laittaa suutin sylinterinpäähän. Tämä muotouttaa o-renkaan/renkaat just oikeaan muotoon sylinterinpään putken mukaan
Its already smooth enough to be considered "polished". Since in this case its anodized aluminium, you cannot really polish it. If anything it will become worse if you go through the anodizing.
MIne was pretty tight but I just used some dry teflon lube on the cylinder head and it is perfect now...didnt seem to affect compression or anything either so thats good lol.
Gotcha, yea for sure that could be an issue. I wasnt attempting to detract from the video's validity at all, more just spouting random facts in case its helpful if people are nervous about possibly screwing up their orings because they lack the skills/tools to do this.
I'm glad to see YOU talk to the parts as you work on your guns, too! Hahahaha! Great vid, buddy! THUMPY...OVER!
haha :D thanks. :)
If you don't have a dremel, what would happen if you stretch the o-rings?
instead of dremeling i found you can heat the the nozzle containing the o-rings and then using pliers to slide it back in forth over the cylinder head till the o-rings are stretched to where they are loose enough on the cylinder head to function properly
What if my nozzle can't reach perfect seal? Is there any solution for this? I tried to change inner oring but it didn't help.
I'm having trouble with my piston head (i think that's the blue colored part, not sure)
The o rings are literally flat i added teflon tape to fix it temporally because it has a huge Air-leak.
My aeg started shooting from its original 380fps-400fps to 240fps-280fps (with .20s) which is pretty lame, i was able to manage to play with it, but i still want to fix it since sometimes people don't even feel the bb unless i spray the hell out of them and they still say they didn't felt anything. lol
I can change the o-rings?
I tried taking them out but i couldn't they seem glued to the piece, do i have to buy a new one?
You must be talking about the cylinder head. Have you checked that it is actually leaking there? Your fps drop is too big to be caused just a minor leak there, I would say that it is something else causing your issue. But if it really is leaking there massively, I would recommend you to put the tape under the O-rings and grease the O-rings well before installation. Have you checked everything else in your gun?
Maekiii I did checked other things but everything seems in place.
I expanded the piston o-ring and did fixed up a little bit the compression but it was still leaking air through the cylinder head.
I added the teflon tape to it and now the compression is perfect.
But i can't take out the piston head o-rings to replace them, they seem glued.
I don't know if that's normal and i simply should buy a brand new one or there's something wrong in it, since it's my first aeg i'm unsure about it.
I think the teflon tape might be dangerous at long term-use, not really sure so i want to fix the piston head.
Can the piston head o-rings be replaced?
i had the same prob ,i used a bit of silicone grease ,the dielectric type and worked it a hundred times ,seems to be just right now !!!
In this case it was so tight that the grease didnt help.
Heads up zCI v2/v3 cylinder head and SHS ak nozzle long are a very tight fit. Good video thanks subbed
Last time I had this, I just took a really small pen file and made the groove the O-rings sit in a little deeper. I think that may be preferable, just because it doesn't risk the air seal as much.
Intresting.. That sounds a little riskier to me actually. You have less control of the material removal, so it will be inconsistent. Plus that way you might make the O-ring channel wider, meaning that the O-ring will have slop, that can cause leaks. This method of mine is totally risk free if you do it patiently.
Helpompi on vaan Lämmittää o-rengasta käyttämällä sytkäristä liekkiä suuttimen läpi, ja nopsasti laittaa suutin sylinterinpäähän. Tämä muotouttaa o-renkaan/renkaat just oikeaan muotoon sylinterinpään putken mukaan
this doesn't effect the compression right?
If done right, no. If you make the O-rings too thin, then there is a possibility for a leak.. so be careful.
What do you do with nozzles that don't have o-rings and are too tight?
Lapping them. But for the same price, you can get a new one with an O-ring.
Why not polish the cilinder head nozzle
Its already smooth enough to be considered "polished". Since in this case its anodized aluminium, you cannot really polish it. If anything it will become worse if you go through the anodizing.
MIne was pretty tight but I just used some dry teflon lube on the cylinder head and it is perfect now...didnt seem to affect compression or anything either so thats good lol.
Yeah this video applies to cases where the o-ring is oversized and the lube does not really help.
Gotcha, yea for sure that could be an issue. I wasnt attempting to detract from the video's validity at all, more just spouting random facts in case its helpful if people are nervous about possibly screwing up their orings because they lack the skills/tools to do this.
Just letting you guys know that SRC's cylinder heads dont work with shs nozzles
you cant sand rubber
Yes you can