Hi guys, I have this 028 wood boss that had a worn out spot on the gear inside the pump. Since the pump is no longer available from stihl, I went with an aftermarket pump and it looks right except for that seal. This is where it gets confusing to me. Since the old pump had no seal, I kind of want to pop the seal out of the new one and put it together and see how it does. The gear that drives the pump is made with a shoulder that fits perfectly in the old pump and would probably fit the new pump if I take the seal out. But part of me wonders if it will blow oil out around the gear if I take that seal out. Is there a different gear I can get that is made for the seal? Any help would be appreciated!