I am going to be putting in my springs soon and want to put all new orings and washers on the injectors and connector tubes. I ordered what I thought were the copper washers but they turned out to be some sorta rubber seal. From the diagram there sure look like there were the copper washers but there not, the part# is 3906659. I am not sure what they are for but does someone know the real part# for the copper washers?