HW100 'O' rings.

[Hawkstone]

A search on the web came up with this list of 'O' rings for the Weihrauch HW100, but which rings are suitable for the fill probe?

Here's the full list of factory O-rings and the two recommended alternatives (bolded)

O-ring HW 100, 37.1 x 1.6 Cylinder clamp 2682C
O-ring HW 100, 15.6 x 2.5 Barrel clamp 2682B
O-ring HW 100, 32 x 2 Magazine 2603A*
O-ring HW 100, 13 x 2 Adaptor A 2704
O-ring HW 100, 2.57 x 1.78 Adaptor B 2703B

O-ring HW 100, 3 x 1.5 Valve stem 2655D
O-ring HW 100, 12 x 1.2 Breech block main (12 x 1) recommended 2658
O-ring HW 100, 5.5 x 1 Breech/probe seal .22 2659A*
O-ring HW 100, 4.5 x 1 Breech/probe seal .177 2659A*
O-ring HW 100, 4 x 1.5 Probe buffer 2618A*
O-ring HW 100, 2.57 x 1.78 Main valve inlet 2665D
O-ring HW 100, 7 x 1.5 Main valve outlet 2666
O-ring HW 100, 2 x 2 Main valve internal (2.57 x 1.78) recommended N/A
O-ring HW 100, 7 x 1.5 Regulator piston 2668
O-ring HW 100, 10 x 1.5 Tension adjuster (sometimes omitted) 2672
O-ring HW 100, 8 x 1.5 Barrel 2679

Don't waste money on others "seal kits" Source them yourself. You can buy a lifetimes supply for £10 - £15 and in the right sizes 8) Try your local hydraulics shop for the common imperial sizes #005 + #009 or look online. Be aware, there is nothing to be gained from using harder O-rings than the std 70shore, in fact if O-rings are too hard they may not deform sufficiently to seal.

[essjay]

Don't bother looking any futher than http://simplybearings.co.uk/shop/o_rings.php.
You can buy small numbers and postage is only £1.50.
Great service when I used them.
sj

[Hawkstone]

Thanks for that, but what size O rings are required for the fill probe on the HW100?

[cornish kev]

BS005
2.57 x 1.78

[Hawkstone]

Thanks for that

[AD_K]

Excellent and useful post. Thank you

[Kangastu]

Dear all,

Could I just confirm which o-ring is the correct size to replace the oring on the probe that enters the cylinder from the breach block.

Regards

Stu

[mossey]

cracking post buddy

[Jonster]

Dear all,

Could I just confirm which o-ring is the correct size to replace the oring on the probe that enters the cylinder from the breach block.

Regards

Stu

O-ring HW 100, 2.57 x 1.78 Main valve inlet 2665D

This one mate, thinks its BS005

[slippery4will]

Are the o ring on the loading magazine different sizes for different calibres, I have a 177 and a. 20 but the. 20 damages the o ring, I've been told they are but can't find any lnformation.

[Blackmax]

BS008, you guys are looking at the wrong area of the gun.

[oldboyshooter]

A search on the web came up with this list of 'O' rings for the Weihrauch HW100, but which rings are suitable for the fill probe?

Here's the full list of factory O-rings and the two recommended alternatives (bolded)

O-ring HW 100, 37.1 x 1.6 Cylinder clamp 2682C
O-ring HW 100, 15.6 x 2.5 Barrel clamp 2682B
O-ring HW 100, 32 x 2 Magazine 2603A*
O-ring HW 100, 13 x 2 Adaptor A 2704
O-ring HW 100, 2.57 x 1.78 Adaptor B 2703B

O-ring HW 100, 3 x 1.5 Valve stem 2655D
O-ring HW 100, 12 x 1.2 Breech block main (12 x 1) recommended 2658
O-ring HW 100, 5.5 x 1 Breech/probe seal .22 2659A*
O-ring HW 100, 4.5 x 1 Breech/probe seal .177 2659A*
O-ring HW 100, 4 x 1.5 Probe buffer 2618A*
O-ring HW 100, 2.57 x 1.78 Main valve inlet 2665D
O-ring HW 100, 7 x 1.5 Main valve outlet 2666
O-ring HW 100, 2 x 2 Main valve internal (2.57 x 1.78) recommended N/A
O-ring HW 100, 7 x 1.5 Regulator piston 2668
O-ring HW 100, 10 x 1.5 Tension adjuster (sometimes omitted) 2672
O-ring HW 100, 8 x 1.5 Barrel 2679

Don't waste money on others "seal kits" Source them yourself. You can buy a lifetimes supply for £10 - £15 and in the right sizes 8) Try your local hydraulics shop for the common imperial sizes #005 + #009 or look online. Be aware, there is nothing to be gained from using harder O-rings than the std 70shore, in fact if O-rings are too hard they may not deform sufficiently to seal.

Where can I buy seal number 2704 ?

[TVRGREG]

Where can I buy seal number 2704 ?

All of those available on the bay. i have found one pack of 5 for £1.90.
just do a quick search .

[oldboyshooter]

All of those available on the bay. i have found one pack of 5 for £1.90.
just do a quick search .

Hello, thanks, can you send a link to those seals

[--ped--]

All of those available on the bay. i have found one pack of 5 for £1.90.
just do a quick search .

a bit dear really but then your paying more in post and evilbay fees so go to a hydraulics place and on should only be about 10p max as nbr 70 is cheap enough
if your replacing the bs005 get one from hw100 tuning as anything less than a pu90 seal will not last that long ,one of the reasons i don't do kits for the hw100 is that Steve does them