[Rhodes22-list] Continuing compression post saga

[ROGER PIHLAJA]

Hi Matt,

The shoal draft keel has so called internal ballast.  In the picture, you are looking at the top of the internal ballast.  The ballast consists of a slurry of lead shot and Portland cement.  This slurry is poured into the ballast cavity and allowed to cure.  Once cured, this composite ballast material is very strong in compression.  I recommend you run your new compression post down to the top of the ballast and thru bolt it to the wooden stringer.  The thru bolt will prevent the bottom of the compression post from moving around no matter how bad the sailing conditions get.  Make the compression post long enough such that it must be forced into position, not a slip fit.

Do you have rot in the core of your cabin roof?  If yes; then, that must be fixed first.  This fix depends upon the cabin roof being incompressible and rot in the core will invalidate this assumption.

Roger Pihlaja
S/V Dynamic Equilibrium
Sent from my iPhone

> On Jun 29, 2024, at 4:11 PM, Matt Wilson <mwhornblower at gmail.com> wrote:
>
> The boatworks guy didn’t really think there was much rot. It all sounds
> solid. FYI
>
>> On Sat, Jun 29, 2024 at 3:03 PM Matt Wilson <mwhornblower at gmail.com> wrote:
>>
>> Hi everyone,
>>
>> Per my boatworks guy’s advice, I have started working on installing an
>> additional compression post as mentioned in some posts on this list. After
>> cutting away the floor next to my original off set post, I have found this
>> 2x(4?) on edge supporting the original post.  This 2x4 appears to be half
>> submerged into some kind of cement like substance. Can I use this 2x4 and
>> or cement to support an additional post?
>>
>> I hope the picture shows up
>>
>> Thanks again,
>> Matt Wilson
>> Hornblower II
>> White Bear Lake, MN
>>
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