Hey Guys, I'm really not new to working on boats, but that bolt rusted away in such a manner so as to make it look just like some sort of clevis pin, even with a mirror. The scary thing is, there was movement on the elbow; Ergo, there wasn't a good seal. I'd been blaming my stuffing box for water in the engine compartment (I'll repack it anyhow). The cure; A dremel w/ an abrasive bit - just small enough to fit in there. I ground it down and popped off the elbow, and the bolt came out w/ just my fingers. nasty job, but a good excuse to break out a bottle of the good stuff. Thanks again, Steve G.