I have a Daystate Huntsman Classic in 177 cal(FAC - 20 ft lb).the pcp has sprung a fill port leak.any idea whats the fill port O rings sizes...so i can procure them locally.Im based in India where theres no daystate repairs possible and everything is a DIY.i am enclosing a photo of some o rings which were sent to me by a friend from UK but the O ring numbers are now faded..if someone could help me decipher that too(can i be told if the fill port O ring is here in this package-some sizes visible are 2x003(.177),2x004(.22),4x117,02x111..cant make out the rest).plus where to get a exploded diagram for the pcp and especially for the fill port and how are these o ring numbers to be correlated with these sizes on the pcp exploded diagram where there is no mention of o ring sizes by the nomencalature used by Daystate in these o rings(eg cant see O ring 003..etc)thanks.Anirudh
Pull the actual orings out of the gun and measure them.
Compare to these charts:
https://www.allorings.com/o-ring-size-charts-index
Then you can order multiple lifetimes of orings inexepsively
Buna 70 is the most common hardness:
https://theoringstore.com/store/index.php?main_page=page&id=7
Corrected sizes as per daystate are now as under as per their email(this is the package i have):-
2x003(.177)-BOLT O RING FOR PELLET PROBE
2x004(.22)-NOT MY PCP CALIBRE
4x117-FRONT VALVE BODY O RING
4x008-TRANSFER PORT BUSH O RING
2x118-SOLENOID SPACER O RING
2x111 URETHANE-PISTON
I am yet to open up the leaking fill port as the fill port o rings plus other orings are stuck in UK(Royalmail strike/cyberattack etc).but a local vendor shipping me the fill port piston o ring(006 URETHANE A 90)...wonder where these o rings fit(top list)--does the 111 size o ring fit in the fill probe piston?
Maybe this can help.
DayState O-rings – A Reference for OwnersRevised May 6, 2015
This list will be updated as best as possible. If anyone wants would like to add info or observes an error, please reply to this post.
Please note that DayState uses both Imperial or Metric O-rings. For Imperial O-rings, either the British Standard dash number (BS-xxxx) or American Standard dash number (AS568-xxxx) will work.
Air Wolf O-ring Kit:
Metric 25mm x 1.5mm Buna-N A70 (Magazine)BS-003 Buna-N A90 (Bolt Probe .177)BS-004 Buna-N A90 (Bolt Probe .22)BS-008 Buna-N A70 (Transfer Port Bush)BS-111 Urethane A90 (Piston)BS-112 Buna-N A70 (Harper Valve)BS-113 Buna-N A70 (Dust Cover)BS-118 Buna-N A70 (Solenoid Spacer)BS-617 Buna-N A70 (Aluminum Bottle)
INDIVIDUAL SEALS AND O-RINGS:
Magazine O-ring (All Calibers)
25mm x 1.5mm Buna-N A70
Bolt O-rings (aka Pellet Probe): Air Ranger, Air Wolf, MK4, Huntsman, Regal – FAC
.177: -003 Buna-N A90.20: -004 Buna-N A90.22: -004 Buna-N A90.25: -005 Buna-N A90
Bolt O-rings (aka Pellet Probe): Air Ranger, Air Wolf, MK4, Huntsman, Regal – 12 ft/lbs
.177: -003 Buna-N A70.20: -004 Buna-N A70.22: -004 Buna-N A70.25: -005 Buna-N A70
Bolt O-ring: Wolverine 303, B, C, HP (located just inside the barrel not on the actual probe)
.22: 5mm x 1.5mm Buna-N A70.303 <Unknown>
Transfer Port Bush O-rings:
-008 Buna-N A70 (AR, AW, MK4, HM)5mm x 1.5mm Buna-N A70 (AR80)
Harper Valve O-rings:
-112 Buna-N A70 (AW, MK4)-BS616 Buna-N A70 (AR, HM, RGL)
Dust Cover O-rings:
-113 Buna-N A70 (AR, AW, HM, RGL)BS810 Buna-N A70 (MK4)
Front Valve Body O-rings:
(AR, AW, MK4, HM, RGL)-117 Buna-N A70
Solenoid Spacer O-rings:
(AR, AW, MK4, HM, RGL) -118 Buna-N A70
Shroud O-ring: MK4
14.5mmx1.5mm Buna-N A70
Aluminum Bottle O-ring: (AR, AW)
BS617 Buna-N A70
Striker Valve Retainer O-rings: (AR, AW, MK4, HM, RGL)
-006 Buna-N A70
FAC Valve Stem O-rings:
(AR, AW, MK4, HM, RGL)-007 Buna-N A70
Regulator O-rings:
–009 Buna-N A70 (AR, AW, MK4, HM, RGL)-012 Buna-N A70 (MK3)
Foster Fill Coupler O-ring: (AR, AW, MK4, HM, RGL)
–010 Buna-N A70
Piston O-rings: (AR, AW, MK4, HM RGL)
–006 Urethane A90
Stripped my huntsman..how to loosen this front valve body...heat it?there are 2 o rings inside it which have to b changed.i have already seperated the fill port valve and its piston which was leaking..its main o ring was cut through.will replace that.
see these photos...if i have to access the other 02 important o rings whioch are inside the rear valve body do i have to open the safety catch group,then the hammer group and then access the rear valve body for which i have to remove the dowel pin and the valve body retaining screws which are shown on either side of the dowel pin.
The transfer port o ring also to be changed..is it here in the reciever or is it also on the top of the air tube as shown below
my manometer is visible...though there was no leak from it...is there a requirement of changing the o ring visible inside the manometer hole
pcp is 2011 make and has seen o rings changed once after a leak in 2013...sinced then no o ring changes
