We've got a 10' Mercury Dinghy
that we're trying to replace a valve on -- I know that in *theory* you take your valve tool (which we have) and you unscrew the outside part of the valve from the inside part... but ours won't budge.
It looks like this:
Just for the heck of it, we tried unscrewing the other functioning valves, and none of them will budge. I'm guessing that the tropical sun has 'fused' the two pieces together... but we really need to get this valve apart so we can get our dinghy
Any advice? Tips for unsticking plastic parts
? Other thoughts??