Fuel pump copper/aluminium washer size

[col320ce]

Hi

The lower large connection to the fuel pump is leaking and I need to replace the copper washer so I can tighten it correctly.  Does anyone know the correct internal size of the washer?  I can't remember which version of the fuel pump I have in case they are different sizes ... sorry.

Thanks for any help

[col320ce]

Here's a Pic of the washer I'm after.

[WRe]

Hi,
see here: https://www.sl113.org/wiki/Fuel/FuelPumpRebuildEarly; should be a copper ring 18x22 mm.
...WRe

[BaronYoungman]

I think people might be confused. That is the later style short pump shown and the crush ring in question (the lower intake one)  is usually aluminum not copper and size  22x27mm, the one at the top of the pump is usually copper and 18x22mm.
Bob