copper washers Yanmar fuel lift pump

[Spyro]

can anyone tell me what size the washers are on a 2gm20 lift pump banjo fitting?

Thanks

 

[DanTribe]

I seem to remember that they are 8mm.
For some reason the secondary filter banjo on my engine is 12mm
I bought a selection box of copper washers off Ebay to make sure I had the correct size.
Worth annealing the washers before fitting, even if they are new ones.