I have a 14' aluminum boat, 6 yrs old, and the plug has been in there since bought! It won't come out. It's a standard plug with the nut on the end that you can tighten or loosen. I guess dirt and corrosion got in there. Any tip on how to get this out, I can't budge it.

Is it the kind with a rubber body? I'd spray some WD-40 or something like that on it, give it a little while to penetrate, then try to tapi it out from the inside.

probably a steel plug and alum boat

Electrolysis at is finest

Hit it hard with wd40 or penetrating oil/spray

Be careful takin it out...steel will wreck some threads quick

Well if the plug was put in from the inside and it and it has electrolysis, then do the above, but you may want to get a hammer and a deep socket that you can use to pop it out. If it has a white power look around the plug then it is indeed electrolysis.  In that case, you're going to need a bigger plug once you get that one out because the aluminum is going to be crap.  The crewboat's I work on were designed with SS piping, needless to say I know first hand about how bad electrolysis issues can be.

Use PB Blaster. That stuff will break anything loose.

PB Blaster x2!

Use PB Blaster. That stuff will break anything loose.

 

 

PB Blaster x2!

 

X3. That's stuff is "DA Bomb"!!!

Tie the plug to your truck, drive off, and hope for the best.

Tie the plug to your truck, drive off, and hope for the best.

 

I literally laughed out loud reading that. 

That's how I got my toof pulled.

Tie the plug to your truck, drive off, and hope for the best.

 

 

I literally laughed out loud reading that. 

I worked at a RV dealership for a short stint. To remove hitches that were rusted to the receivers, we would heat them with a torch and smack them with a sledgehammer. If that didn't work, we'd chain the ball hitch to the forklift and floor it