co2 regulator problem

[Cathal O D]

Hey there

I just got a new regulator for my co2 bottle and it doesnt seem to fit. The threads look the same but it only goes on about half a turn. I tried gently turning it with a spanner but i dont want to force it.
Can anyone tell from these pics if they ate the same thread?
If not is there a fitting to go between them?

[Cathal O D]

Sorry the pics are so big.

[Damo]

Hi Cathal

Without looking at them in person its impossible to say.

However, The big silver nut on the end of the reg should be free floating.  The copper inner should mate with the internal of your co2 cylinder, you should be able to tighten up the big silver nut to create a seal between the surfaces with the pink rubber washer.

hope this helps

[alealex]

Hi Cathal, I can't get it out of my head all evening. I've checked two of my co2 cylinders and many different regulators Micromatic, Hiwi, Cornelius and the one you have Odl. They've all the same threads. Don't know what to say, I keep thinking co2 cylinder seems to have unusual fitting..

[Ciderhead]

I tried Alexs regs on both my cylinders no issues, where did you get your tank Cathal, they look like monster threads?

[alealex]

Did you try to swap regulators with your friend?

[johnrm]

Its difficult to tell, but the valve on the cylinder looks quite rough.
Has this been abrased? Run your finger nail around the thread and see if its good.
Go to a mates, try your reg on his cylinder and vice versa is the only way to really know

[Ciderhead]

I think Johns right it looks like its been dropped on its side and the first thread is fooked.

[Cathal O D]

There seems to be a slight nick at the very beginning of the irst thread. Ive tried straghtening this with a fine blade an im getting a couple more turns out of it but its not free flowing. Im afraid of shearing the thread if i force it any more.

[Ciderhead]

dony force it, you will bugger your reg valve.
valves for tanks aren't cheap, 28-30, where did you get that tank?
Might be as best to start from scratch of have valve on tank replaced

[Cathal O D]

The thing is i got the tank filled in D&D no problem so im wondeting jow they were able to connect to it.

[johnrm]

Did you run your nail around the thread?
Does the first course feel pinched?

The Valve looks like brass.
Brass=butter, just don't use it on toast.

Get a metal file or junior hacksaw.
Start 2 threads in from damaged area, and with NO pressure, get a feel for the thread.
Move towards the damaged thread and tease the thread out.

In truth you could remove the first thread or half thread with a file.

[Cathal O D]

Did you run your nail around the thread?
Does the first course feel pinched?

The Valve looks like brass.
Brass=butter, just don't use it on toast.

Get a metal file or junior hacksaw.
Start 2 threads in from damaged area, and with NO pressure, get a feel for the thread.
Move towards the damaged thread and tease the thread out.

In truth you could remove the first thread or half thread with a file.

Yea i did exactly that. All the thread feels fine appart from that slight nick at the very beginning of the thread. I might get a wire brush to clean the thread completley (even though it looks ok) and use some WD40 to lube it.
What do ye think?

[johnrm]

The nick might be enough to knock the thread off.
Gently does it.

[Ciderhead]

this is tense and better than Eastenders
"Cut the blue wire"