Quoted from Skidave:Certain Bally's games had a unique flipper assembly bracket. On mine, the washer goes towards the front of the coil, by plunger. As viewed in reference to the coil solder contacts...the other side (non solder).
I found a mechanical diagram on the web, but don't have access to it @ the moment.
I pulled apart eight ball deluxe and the spring washers were in this position ^. Couldn't find info to prove it though. I went through the parts catalog and they didn't mention the washer.