Original submission by T Jan 21st 2007:
|The large Plugs can be a source of leaks if the Copper Washers under them haven't been installed correctly. On Strombergs these are called the Main Metering Jet Plugs. HZ 6 Carby leak threadStromberg WW(2) Stromberg Carburettor. Items 46 (copper washers) and 47 (plugs).|
It's best to replace the Copper Washers during a Carburettor rebuild. Dig out the old ones with a screw driver. The new Copper Washers must be installed into the Carburettor Body first. The Carburettor Plugs are installed after them and screwed down tight which makes a Crimp between the Carburettor Plug and the Carburettor Body as shown in the animation. Note: Do *not* place a Copper Washer onto the Plug and then install and tighten the Plug. If you do the Copper Washer will become twisted out of shape and the resulting leak will not stop no matter how tight the plug is made.
Copper Washer Leaks:
If this leak is present, the fuel will slowly drip out all the time.