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S510 - Air "Puffing" at Shroud Holes
Posted: Sun Sep 01, 2019 10:08 am
by Lammy1000
Hello, I just changed the barrel (breech) o-ring on the .177 caliber S510. This stopped the air blow by coming out through the magazine well, but there is a puff of air coming out of the rear holes on the shroud. Is this normal? Thanks for any replies.
Re: S510 - Air "Puffing" at Shroud Holes
Posted: Sun Sep 01, 2019 2:02 pm
by Roger5
Totally normal, don't worry about it. Rog
Re: S510 - Air "Puffing" at Shroud Holes
Posted: Sun Sep 01, 2019 6:00 pm
by Lammy1000
Thank for the reply, Rog.
I was concerned that my transfer port seal may need replacement. Looks like a fun job, but I have to order the delrin seal.
Lou
Re: S510 - Air "Puffing" at Shroud Holes
Posted: Mon Sep 02, 2019 8:31 pm
by rob2hook
Delrin? I thought the transfer port seal on the 510 was just an o-ring, like on the 400 series...
The holes at the breech end of the shroud are the vents that allow the muzzle blast to route back through it and the baffles therein to quieten it.
Rob.
Re: S510 - Air "Puffing" at Shroud Holes
Posted: Tue Sep 03, 2019 11:05 am
by Roger5
Yes it's just an o-ring S427 is the one you need, same on all S400/S410/S510 rifles
Re: S510 - Air "Puffing" at Shroud Holes
Posted: Tue Sep 03, 2019 7:20 pm
by Lammy1000
Some time ago I had this rifle apart and there was a delrin seal that corresponds to part #S610H. Rifle is the s510 x-tra FAC.
Re: S510 - Air "Puffing" at Shroud Holes
Posted: Tue Sep 03, 2019 10:49 pm
by Roger5
Sorry mate, didn't realise it was FAC , yes S610H