Ok guys, motors mostly back together. Another unknown... How the heck does the part in the attached pic go together? Obviously, the black "heater pipe" goes into the threadded fitting and gets locked in place by the plastic clip, but how does it seal? The O'Ring and flat rubber "washer" came out of it. The thing is, the "washer" doesn't appear to do anything; when it's inside between the "heater pipe" and the fitting, it's not tight, it just rattles around, and if I put the O-ring inside the lip of the aluminum fitting, when I push the "heater pipe" into the fitting, it just pushes the O-Ring in and doesn't get a good seal. So how do I put it together so it seals? I can't find any exploded views ANYWHERE.