Leaking Ewarts Tap

[Lowbarn]

I need to fix my leaking tap.

Does anyone know of a decent secondary tap I can fit in place of my current offering?

The original tap leaks out of the carburettor.
I’ve stripped the tap once and cleaned it out, I think it’s still using the cork seals.
I’ll have another go using viton seals.
If that doesn’t work I need a decent tap.
Thanks.
Richard.

[JohnD]

A good plumbing merchant would stock a female to male ball valve that you could be installed under the original if you insist on keeping that and then your copper tail attached, or extended to the carburettor

[Dave Mann]

I tried viton seals and by the time I squashed them up to seal I couldn't move the tap, cork seals are available from A 7 components just do not let them dry out.

[Austin in the Shed]

On my RN I made some replacements from nitrite bonded cork from a local engineering supplier,I used something like 1/8 sheet and just used 3 or 4 from memory to get the length needed. I tried O rings put couldn’t get them to work.

[Tony Griffiths]

The tap you have looks to be the mid-1930s onward type, with the main plunger inside the firewall and the reserve outside. These taps can be reconditioned when their bores are badly worn, but it does mean reaming them out. Here's the complete solution. http://www.da7c.co.uk/technical_torque_a...l_tap.html
Did you know that the diameter of the corks can be adjusted to stop leaks? Look at the outer end of each plunger, and you will see a small slotted screw. Turning the screw compresses a plate against the end of the cork, so compressing it slightly.