LazzurusMan Posted June 29, 2022 Posted June 29, 2022 So checking the air seal in my Sig 556 before I clean it all ready for a re-shim to a new motor, I discovered that the air nozzle is barely sealing. I've removed the nozzle oring and it's had it. However, I don't have anything accurate enough to measure the oring, and I don't know where could possibly stock an oring this small that I can pick up easily. Anyone know where I should be looking and what I should be looking for?
Supporters Lozart Posted June 29, 2022 Supporters Posted June 29, 2022 19 minutes ago, LazzurusMan said: So checking the air seal in my Sig 556 before I clean it all ready for a re-shim to a new motor, I discovered that the air nozzle is barely sealing. I've removed the nozzle oring and it's had it. However, I don't have anything accurate enough to measure the oring, and I don't know where could possibly stock an oring this small that I can pick up easily. Anyone know where I should be looking and what I should be looking for? To specify an o-ring you'll need the ID (inside diameter), OD (outside diameter) and the material. Or buy a selection box of small o-rings from Amazon/ebay and keep trying them all until you find one that fits. Personally, I'd just get a new nozzle.
LazzurusMan Posted June 29, 2022 Author Posted June 29, 2022 6 minutes ago, Lozart said: To specify an o-ring you'll need the ID (inside diameter), OD (outside diameter) and the material. Or buy a selection box of small o-rings from Amazon/ebay and keep trying them all until you find one that fits. Personally, I'd just get a new nozzle. To get a new nozzle means taking the old one somewhere can can scan and machine an exact replica, or buying a second hand king arms Sig 556 to pinch the nozzle out of it. They're unique to the gun. It's a V3 gb that sits far enough back from the hop unit that it has a very long nozzle to work properly. I should be able to find a replacement oring somewhere. Lozart 1
Supporters Adolf Hamster Posted June 29, 2022 Supporters Posted June 29, 2022 16 minutes ago, LazzurusMan said: To get a new nozzle means taking the old one somewhere can can scan and machine an exact replica, or buying a second hand king arms Sig 556 to pinch the nozzle out of it. They're unique to the gun. It's a V3 gb that sits far enough back from the hop unit that it has a very long nozzle to work properly. I should be able to find a replacement oring somewhere. worth measuring the nozzle and having a look to see if there are ones for other guns in the same length? there's a few guns run a longer nozzle.
LazzurusMan Posted June 30, 2022 Author Posted June 30, 2022 So I found a video on youtube that apparently shows you how to restore old o rings. Heat up some cooking oil, not too hot, and put the oring in for a few minutes, then leave to cool. And I swear I'm not pulling any legs, it worked. My piston/cylinder/nozzle now have a pretty perfect seal. Like, I can't believe it actually worked.
Shamal Posted June 30, 2022 Posted June 30, 2022 Yeah it's true and they are particularly tasty with onion rings.?
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