Rear sear pedestal issue

[billnorman1]

I have a ProXL it's a 1998 I think, but anyhow, it has 3/4" screw in posts. In this case, I cannot get it to screw out. I put a pipe wrench on the seat post at the bottom, it moves, I've turned it 4 or 5 revolutions, but it has not gotten any looser or higher. There is no access to the bottom of the post plate. Anyone here had this issue? It looks like I will have to remove the screws that hold the plate to the deck. I took one out, two others are just spinning. I need this post, my partner is 72 and he can't tap dance any more.

[tdt91]

If it's been in there a long time, then rust has built up a ring and it will be hard to get out. You could keep spraying break Free type stuff or something that will break down the rust.

[billnorman1]

It turns in the brass socket. I think it's a thread in, and the nut broke off the bottom of the floor mount. I might saw the pedestal post off and pound it through the brass piece into the "unknown" below since I can't get the screws that hold it in loose, they just spin. Absolutely no access to the bottom.

[tdt91]

If you want to take the mounting base screws out, try using a large flat head screwdriver and pry up on the base while turning the screws. You may need to cut back the carpet do do this of course.

[billnorman1]

If you want to take the mounting base screws out, try using a large flat head screwdriver and pry up on the base while turning the screws. You may need to cut back the carpet do do this of course.

Good advice but I already tried this and have stripped the carpet off too. It's amazing, I guess they built the boat around the seat post plate there is absolutely no access to the underside. The two aft screws came out but all the rest just spin, I am inclined to think there are nuts on them somewhere.

[tdt91]

time to use a multi-tool with a cutting blade

[billnorman1]

I know I can get the mount out one way or another, however my co-angler is almost as old as I am and needs something to lean on. The issue is, if I can't get to the bottom of the back deck, how can I put another mount back in? I'm almost positive some of the screws go into hidden nuts of some kind, they turn too easily and don't go anywhere.

[javelin90]

Try Kroil oil from amazon. That will get it loose.

[201pro]

Probably accessible from the front, but it will mean pulling the gas tank cover (under/behind the seats) and then pulling the tank to be able to reach it.