Bench running a glowplug engine - vital part missing!

[nogginthenog]

I have purchased an old Webra .40 glowplug engine to run on a bench because my 10 year-old boy has a healthy curiousity for engines etc.

I'm gathering together all the bits I need on Ebay - fule tank, prop etc. But the tiny connection where the fuel hose connects to the back of the carb is missing, and I'm struggling to find out what this is called so I can buy one online.

So, it's the small bit that screws into a hole in the back of the carb - about 3mm in diamter, to allow a fuel pipe to slip over it.

Any thoughts?

[nogginthenog]

thanks to both of you. I will get searching tomorrow...