C22 Keel Restoration - Part 2
Posted: Wed Apr 22, 2015 6:48 am
The Bracket
All Stainless Steel 304 parts sourced from McMaster-Carr
3/8" Plate
Pipe with 3/4" bore for main sleeve
Half-Coupling 3/4" NPT to hold the plug
Hardened 3/4" shaft
Brass 3/4" NPT plug
The welding is a bit crude, but will do the job. I'm not trying to win any welding awards
I changed my design slightly from some others I've seen here. I brought more (3/8") of the main sleeve out to the keel. The more sleeve steel there the better. The gap has to closed with something and using washers gives zero support. With this, I only have to close an 1/8" gap each side which I'll do with SS washers. Caveat - The keel can't be raised into the trunk in the full horizontal position since the keel sleeve area is 2" thick and the keel top is 2.5". Instead, raise the keel in the 60 degree position and then engage the shaft.
The Trunk
Here's the original. I don't understand why the half-moon cutout in the trunk wall. At any rate, I fashioned my own 1/4" aluminum plates to fill those sections. Plates installed and sandwiched tight with Marine-TEx structural epoxy The Keel
My 1980 C22 had the snubber, top and aft which is a plumbing flange with plastic rod inside. I like the idea of a stablilzer for the keel so I took that a step further. Installed SS skid plates each side at top. I'll mount new SS flanges with plugs in aft keel trunk to pinch the keel from the 0 - 60 degree position
Basic concept More to come...
All Stainless Steel 304 parts sourced from McMaster-Carr
3/8" Plate
Pipe with 3/4" bore for main sleeve
Half-Coupling 3/4" NPT to hold the plug
Hardened 3/4" shaft
Brass 3/4" NPT plug
The welding is a bit crude, but will do the job. I'm not trying to win any welding awards
I changed my design slightly from some others I've seen here. I brought more (3/8") of the main sleeve out to the keel. The more sleeve steel there the better. The gap has to closed with something and using washers gives zero support. With this, I only have to close an 1/8" gap each side which I'll do with SS washers. Caveat - The keel can't be raised into the trunk in the full horizontal position since the keel sleeve area is 2" thick and the keel top is 2.5". Instead, raise the keel in the 60 degree position and then engage the shaft.
The Trunk
Here's the original. I don't understand why the half-moon cutout in the trunk wall. At any rate, I fashioned my own 1/4" aluminum plates to fill those sections. Plates installed and sandwiched tight with Marine-TEx structural epoxy The Keel
My 1980 C22 had the snubber, top and aft which is a plumbing flange with plastic rod inside. I like the idea of a stablilzer for the keel so I took that a step further. Installed SS skid plates each side at top. I'll mount new SS flanges with plugs in aft keel trunk to pinch the keel from the 0 - 60 degree position
Basic concept More to come...