After about an hour of prying I finally got that dumb thing off!! Man that 4200 sure is some strong stuff! So first thing I noticed after I got it off was that there was NO 4200 between the mounting surfaces, So my conclusion is that that the pump shoe was tight against the hull if there was a gap I think there would have been a layer of 4200 on there. What do I need to pay attention to when putting it back on? thanks!