copper sealing washers

[FatAl]

What size are the sealing washers for the sump plugs on the engine, gearbox and final drive of an R100gs? Is it best to use the copper variety or the aluminium type that seem to be getting more popular?

 

[litelfun]

What size are the sealing washers for the sump plugs on the engine, gearbox and final drive of an R100gs? Is it best to use the copper variety or the aluminium type that seem to be getting more popular?

ok the size of them is 16,0x22,0x1,5 owning 3 bickes all using the same copper ring and needing aboute 16 0f them everry spring to du my service I buy them in bulk

 

[FatAl]

Thanks for that. I had a box of assorted copper washers that I've used for years but I've finally run out of some of the frequent use ones.