Thanks for the information,
sailingdog, i looked up pb blaster and it seems like it's only available for purchase in the U.S.A. and I'm in Canada unfortunately. I'll try to find some similar penertrating oil though.
sailboy21 i'm no expert on sailboat maintenance. I'm still near the start of the learning curve ... but that photo kind of looks like the eyebolts that are in the quadrant. there is no obvious corrosion. the eyebolts look like stainless and look like they're in good shape but they are definitely seized. The quadrant is not bronze ... looks like cast aluminum (??)
I will try a penetrating oil, light tapping with hammer and chisel approach. and I'll take your advice on cleaning everything up before reassembling.
Thank you all ... much appreciated.