August 25, 2016 The boatyard cleaned and prepped the hull and keel Monday and I drove down early Tuesday morning to be there for the reattachment process.
Cleaned hull and keel surfaces ready for bonding.
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| New centerboard pennant attached |
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| Once the keel bolts were started in the holes of the keel stub, James coated both surfaces with 3M 5200 marine sealant. |
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| All surfaces coated and ready for bonding |
The holes at the bottom of the keel where counter sunk so that the sealant could form a good seal there. The base of each keel bolt got a good extra ring of sealant to fill the counter sink space. The keel bolts were also smeared up about 2 inches with 5200...I didn't get a photo of that final step.
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| A lot of sealant squished out when the hull was lowered onto the keel. That was expected...better too much sealant than not enough. |
Now it was time to go inside and put the new washers and nuts on the keel bolts. James and Ken put 5200 on the base of the keel bolts above the backing plates to help lock the nuts in place. Then the nuts were tightened a little at a time, working from the center out. The 1/2" bolts went to 45 ft. lbs., the 3/4" bolts went to 131 ft. lbs. and the 1" bolts went to 300 ft. lbs.
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| It took a big torque wrench to get the 300 ft lbs. on the two 1" bolts. |
Here are all 20 nuts in place.
18 of the 20 nuts in place
Two are out of sight of the camera...the forward most one under the mast step and the aft most one under a floor section.
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| James did a good job cleaning the keel/hull joint. |
Thanks
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