Bought a replacement pump to swap into the old reservoir. Instructions are pretty generic. The new one has an allen screw in this hole. The old one appears to be plugged. I assume I leave the allen plug in? Also I believe there are extra o-rings. The big one and 2 same smaller ones are different thickness but same diameter. Those seal the pump to resovoir. I believe I use the thinner ones and discard the other 3. The medium sized one next to the fitting I believe is an extra for the fitting. There is that last tiny o-ring.. have no idea where is goes. Is it even needed for a 70-72 pump? Thanks
