I am in the process of refitting my ex west coast commercial gill netter that I have had for the past 12 years. I converted her to "pleasure" use when we first got her and have been using her constantly since. The old girl needed some interior refitting, since we now don't like the way we fitted her out the first time, as well as some general hull work so we hauled her and had her transported to our house where she now sits right outside my shop. I have draped a tarp around the hull and have a sprinkler system going under the hull to keep her damp so she will not dry out too much over the summer.
I have the interior almost totally gutted and have scraped and cleaned all the bilges looking for deterioration and have found very little and what there is can be fixed easily. I want to refasten and recaulk the hull since the boat will be out of the water and in my yard untill next spring so I want to do it up right.
What I am looking for comments on is the proposal to refasten the hull using 1/4 inch galvanized carriage bolts instead of screws or nails. The reason I have for this proposal is that it would seem to me to be far less invasive to the ribs if a small round hole were drilled in them rather than "forcing" a screw in or driving in a nail, even with pre-drilling. There are many places where the original nails have cracked the ribs at the point on insertion, not enough that it has damaged the rib but I don't want to take the chance of cracking them further.
The hull is 2" western red cedar over 1 1/2" X 2 1/2" oak ribs on 10" centers. The original fasteners were cut nails (galvanized I would think) that are starting to deteriorate. Since they are into oak, they will NOT pull from any area below the waterline no matter how brutal I get so I can only go on the general condition of other items like the thru bolts that hold the keel and keelson together, which was bad. I have already replaced all these fasteners which was fairly easy as I just added new ones next to the destroyed ones.
I am considering using the bolts as a very secure fastener that can't pull out since I can reach vertually all the areas within the hull now that the interior is stripped out to install the nuts and washers inside.
Do you guys have any comments on this suggested proposal ?
Thanks in advance for your comments,
John Tones MV Penta (high and dry)