Crosman Benjamin AS392 O ring size please

[Deejayuu]

Thanks for looking. Can anyone say O ring sizes for the action please? Four external on valve body, one inside sealing the halves, one in side bottle to block adapter, one transfer port and bottle neck.

 

[Bigbadbear]

Jules, give ped a shout he should be able to tell you buddy

 

[Deejayuu]

@ped any hints please?

 

[nikvanorton]

Here on ebay.

 

[ped]

@ped any hints please?

do you want a full set as i have them in stock apart from valve stem £4.50 plus post
three (inc co2 cart seal mk1 piercer only) of the rings i find are best in pu90 but the others can be nbr 70
if it is the later piercer then the co2 seal is obsolete but a 1077 seal will fit in it's place

 

[Deejayuu]

do you want a full set as i have them in stock apart from valve stem £4.50 plus post
three (inc co2 cart seal mk1 piercer only) of the rings i find are best in pu90 but the others can be nbr 70
if it is the later piercer then the co2 seal is obsolete but a 1077 seal will fit in it's place

Thanks for supportive reply. In #1 it's the four body seals in dire condition. Managed to replicate the others from the stash.
These four seem to be 16 +/- ID with section less than 2 mm.
If the kit has these then yes please.
As you see it's 88g version. PM sent

 

[mucker1066]

Hiya guys, I've just picked up a rather minty, as392 myself, the guy said hes had it 30 years, changed the piercer seal, but it wont stop leaking....

Now I know, the umarex bottles won't match the crosman seals... but I want to fit one of the walther, or webly 12g adaptors... the guy has discarded the original seal, as I thought it was faulty... I know the mk seals on the as392 are obsolete,,,, so whats my next move?

 

[mucker1066]

I have ordered a pack of 3 white seals from bagnal and kirkwood, although I've a hunch they wont work and dont want to waist a £5 air source bottle, to find out

 

[ped]

Two types of co2 seal were fitted to the as range
The early type was just an o ring (short piercer housing) and a flat seal (long housing)
I'm currently looking at getting the obsolete flat seals made but the std work around is to fit a 1077 co2 seal

 

[bobpickbadly]

I had seals from ped a few years ago.I was in the same place as you get some ped seals they work very well

 

[mucker1066]

Two types of co2 seal were fitted to the as range
The early type was just an o ring (short piercer housing) and a flat seal (long housing)
I'm currently looking at getting the obsolete flat seals made but the std work around is to fit a 1077 co2 seal

Aaaah right ok!!!! I did see some guy in polland selling the flat seals, 45 pounds each, said he bought up the crosman stock, when daisy bought them out... where's the best place to get the 1077 seals, ive been looking for king rat seals everywhere,, but no feed back, if they fit.

 

[mucker1066]

Two types of co2 seal were fitted to the as range
The early type was just an o ring (short piercer housing) and a flat seal (long housing)
I'm currently looking at getting the obsolete flat seals made but the std work around is to fit a 1077 co2 seal

Aaaah right ok!!!! I did see some guy in polland selling the flat seals, 45 pounds each, said he bought up the crosman stock, when daisy bought them out... where's the best place to get the 1077 seals, ive been looking for king rat seals everywhere,, but no feed back, if they fit

 

[ped]

I have a few but I'm nearly out but i have made them but I'll be having my seal supplier take a look to see if they can cnc them

 

[mucker1066]

I have a few but I'm nearly out but i have made them but I'll be having my seal supplier take a look to see if they can cnc them

Shame they cant make a cnc stamper, to do 10 at a time, lazer cutting today, to make a stamp, should be easy for an engineering company, problem is cost though

 

[ped]

Not enough demand I'd say I'll get a small batch made then compare cost of them vs the 1077 seal which are about 6 and a bit quid
Most kings have either been converted to air or use a 12g adapter so really once the seal is fitted it isn't disturbed so should have a long life

 

[mucker1066]

Great news guys, the rifle just arrived, pedal confirmed its a mk1 with the o ring seal, now to work out, why it's not holding air.. ive a feeling, the previous owner tried it with a umarex tank.... any idea what 12g adaptors work, single or double.

 

[mucker1066]

Found the problem, an extra o ring on the early as392, not on the as392t