Any time you have something seized because of rust or other bonding, the two best ways to break it loose is thermal expansion and shock.
Since heating the entire length of the extension is impractical, shock is probably your best bet.

That being said, two methods are almost always better than one in cases like these, so getting some tension on it with the tow vehicle, then firmly banging on the extension from all 4 sides several times, working your way down the extension until it breaks loose, may be the most effective method.

Tom
S/V Just Bent

________________________________
From: Rhodes22-list <rhodes22-list-bounces at rhodes22.org> on behalf of ROGER PIHLAJA <roger_pihlaja at msn.com>
Sent: Wednesday, May 12, 2021 2:09 PM
To: The Rhodes 22 Email List <rhodes22-list at rhodes22.org>
Subject: Re: [Rhodes22-list] Trailer Extension Replacement

Jim,

I’m wondering what would happen if you blocked the trailer’s wheels so they couldn’t move and then pulled on the hitch extension with your tow vehicle.  This seems like the maximum amount of force you could apply at home.  You could even try repeatedly backing up and going forward several times.  If that doesn’t break the rust loose, I don’t know what else to suggest.

Roger Pihlaja
S/V Dynamic Equilibrium

Sent from my iPhone

> On May 12, 2021, at 11:25 AM, Michael D. Weisner <mweisner at ebsmed.com> wrote:
>
> ?Hi Jim,
>
> If you need any physical help, just ask. I'm in Kings Park, a few miles down
> the road.
>
> Mike
> s/v Windlass ('91)
> Nissequogue River, NY
>
> -----Original Message-----
> From: Rhodes22-list <rhodes22-list-bounces at rhodes22.org> On Behalf Of
> JimIggy
> Sent: Monday, May 10, 2021 12:43 AM
> To: rhodes22-list at rhodes22.org
> Subject: Re: [Rhodes22-list] Trailer Extension Replacement
>
> I'm wondering if I can hijack this thread to ask a question about the
> trailer extension.  I can start a new one if necessary.
>
> I recently acquired a Rhodes 22 w-trailer.  According to the previous owner,
> the boat/trailer has been sitting for about 10 years.   I removed the two
> pins, but the extension will not move.  I tried pulling the trailer with the
> pins removed and the extension is still stuck in place.  There is definitely
> rust where the extension passes through the receiver.  I used numerous
> sprays, and a 5lb mallet in an effort to free it up.  No luck thus far.  I'm
> considering using heat or perhaps an air hammer.   The extension would be
> very helpful given where I want to launch.
>
> Has anyone dealt with this ?   Should I start a new thread ?   Thank you
>
> 1988 Rhodes 22
> Port Jefferson NY
>
>
>
>
>
> --
> Sent from: http://rhodes-22.1065344.n5.nabble.com/
>