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Theoben Rapid Forum

KevG Lathe work undertaken => kevG section => Topic started by: Tipi on April 28, 2026, 08:04:51 AM

Title: Buddy bottle valve stem
Post by: Tipi on April 28, 2026, 08:04:51 AM
Hello All,

I'm in need of some help with a leaking mk1 bottle. It's the 400.

I ordered a stem replacement kit from best fittings but turns out they only fit their own valve heads.

Anyone know where I can buy a new stem? I read in another post kevg can turn them.

Any help greatly appreciated.
Photo below (hopefully!) 
Title: Re: Buddy bottle valve stem
Post by: Squinty on April 28, 2026, 05:44:01 PM
Keg can make them for you, possible that there is some dust or other crud on the sealing face of the valve.
Might get away with a clean and polish
Title: Re: Buddy bottle valve stem
Post by: Tipi on April 29, 2026, 11:34:21 AM
Will give it a polish and  see what happens. Did melt it a bit trying to get off the valve though.  ::)
Title: Re: Buddy bottle valve stem
Post by: Squinty on May 01, 2026, 12:26:25 PM
Quote from: Tipi on April 29, 2026, 11:34:21 AMDid melt it a bit trying to get off the valve though.  ::)

ahh..
Title: Re: Buddy bottle valve stem
Post by: Tipi on May 06, 2026, 10:01:26 AM
Clean and polish didn't do anything sadly.
But added a small o ring and that's fixed it.
Does initially leak air as you screw it on, but seems fine when tightened.
When I have brought posts I'll message KevG.
Seems a shame to buy a whole new valve when one small bit would fix it.
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