fill probe issue

[mcdonama]

I'm trying to fill the tiny tank on my rifle (CZ 200S) with my new (early Christmas) pump (CS3) but the fill probe is leaking so badly I can't get much pressure in the tank.

I ordered a fresh supply of 007 0-rings (Sterling) and I'm using silicone grease on them.

The probe is a BSA I bought ~6 or 7 years ago. It worked better when the tank had residual pressure but the tank is on zero now and it the probe doesn't like it!

I get the sense that maybe I need a slightly larger OD probe?

Thanks for any advice!

Matt

 

[WorriedMan]

Unfortunately, a PCP collection often results in a collection of different size fill probes. Some will interchange but rare. Recommend securing correct probe for CZ 200S and be done with it. WM

 

[WoodWelder]

Doesn't that rifle have the goofy Air Arms din adapter?

Do you have this set up? https://www.bestfittings.co.uk/shop...-200-fill-adaptors-for-detachable-reservoirs/

 

[wamf]

Doesn't that rifle have the goofy Air Arms din adapter?

Do you have this set up? https://www.bestfittings.co.uk/shop...-200-fill-adaptors-for-detachable-reservoirs/

Likely has a huma gauge with BSA fill adapter

 

[mcdonama]

wamf is on it! I added the Huma regulator and the quick fill with the Huma gauge some years back. I bought a BSA probe (somewhere said it was the right one--don't remember where I saw it).

To me, it seems like the probe is a hair too small, and if it was a tighter fit the o-rings would seal.

Aside from trying a bunch of them, does anyone know what the right fill probe actually is?

My set up looks like this one but came without the probe that's shown in this pic.

 

[wamf]

wamf is on it! I added the Huma regulator and the quick fill with the Huma gauge some years back. I bought a BSA probe (somewhere said it was the right one--don't remember where I saw it).

To me, it seems like the probe is a hair too small, and if it was a tighter fit the o-rings would seal.

Aside from trying a bunch of them, does anyone know what the right fill probe actually is?

My set up looks like this one but came without the probe that's shown in this pic.
View attachment 520259

As far as I know there are 3 types for the non gamo type. The SE, MMC and CLX.
I have se and clx types and they do seem a little loose at times. Some of them I bought for dirt cheap on aliexpress and some came with the gun. I've used larger o rings in some. Usually a little grease then insert probe then connect foster to probe and open the valve wide open and that usually works for me.
I believe that the Huma website mentions the BSA probe and mine is a weird one but the se probe seems to work the best but it leaks for a few seconds when filling.

 

[jarmstrong]

have you tried cocking the gun,, then fill
the hammer could be leaning on the valve a little holding it open,,, just a thought, as you said the gun air tank was empty

 

[mcdonama]

I appreciate the replies! I did try it with it cocked as jarmstrong suggested--same result tho'...

Perhaps the problem may be that the tank is at 0 psi and the pump isn't the same as filling from a scuba tank or something like that where I could open the valve and get immediate, sudden full pressure causing the o-rings to seal?

 

[Grey-Kiwi]

I had the same problem with my new quickfill on my 9015, and a new CS4 compressor.
Could not get pressure at all.
Someone on here suggested I give the probe and O rings a good grease up (nice sticky silicon grease it was too).
Yep...that worked. Pressure started building up immediately.