H-26 Compression Post Lower Plate Re-Sealing

BrianW

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Jan 7, 2005
843
Hunter 26 Guntersville Lake, (AL)
On my H-26, I'm sealing the top and bottom plates of my compression post. I have known leaks on both the top and bottom. I highly suspect one of the lower leaks is between the centerboard trunk and the steel compression post plate. Water leaked from the outer edges of the plate.

Earlier, in a boatyard, I dropped my centerboard, replaced my CB line and reattached it. Because of time limitations, I was not able seal the compression post plates while my boat was on stands and the CB dropped. Now, I've got my boat on the trailer.

I've already raised the compression post and cleaned the upper surfaces of old caulk. Before getting started on the lower end, I'd appreciate your help and opinions.

To seal the lower plate, I'm looking at 3 options:

1) Loosen the CB bolt about 1/4", pry the plate up, and pack 5200 under the slightly raised plate (and the bolt head).

2) Leave the lower plate as it is and just apply 5200 on the outside edges of the plate (and the bolt and other openings).

3) Completely remove the CB bolt and fully remove the plate and reseal the bottom surface? Even though the boat (and centerboard) is securely on a trailer, this option worries me! Would I run the risk of not being able to screw the bolt back into the centerboard bracket nut? If I couldn't start the CB bracket bolt, I'd have to drop the CB and start all over again! .... but, if it worked, it would be the best sealing method.

Which option would y'all take if it were you?
Any more options?

Thanks in advance for your help! BrianW
 

Kermit

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Jul 31, 2010
5,669
AquaCat 12.5 17342 Wateree Lake, SC
Uncle Crazy Dave is the man to answer your questions. Hopefully he'll chime in soon.
 

BrianW

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Jan 7, 2005
843
Hunter 26 Guntersville Lake, (AL)
Option #4?

[To seal the lower plate, I'm looking at 3 options:

1) Loosen the CB bolt about 1/4", pry the plate up, and pack 5200 under the slightly raised plate (and the bolt head).

2) Leave the lower plate as it is and just apply 5200 on the outside edges of the plate (and the bolt and other openings).

[/QUOTE]

Any thoughts on a 4th option? Loosen the bolt as in option #1, but slide butyl tape into the 1/4" gap, then 5200 under bolt head, then carry out what is described in Option 2

Thanks, BrianW
 

BrianW

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Jan 7, 2005
843
Hunter 26 Guntersville Lake, (AL)
Crazy Dave Weighed In

I just talked with Crazy Dave on the phone. He highly advised against moving the compression post plate at this point. He advised option #2, removing all old caulking around the edge of the plate and packing in as much 3-M 5200 as possible in the gap and then place a bead of 5200 along the edge. Then, cover the bolt head in 5200 and a few other target areas. So, that's what I'm gonna do! Thanks Crazy Dave! , BrianW