Thursday, November 5, 2015

A look a the work ahead.

Today I made a quick video aboard Bigtooth to document some of the work that I am going to try and do this fall and winter before the weather warms back up and I can finish the core project.

Thursday, October 8, 2015

New Winter Cover

Today I finished the installation of a new winter cover on Bigtooth. Last year I purchased the Kover Klamp framing system and installed it on Bigtooth with a cheap blue tarp. While the frame held up without any issues the blue tarp was destroyed and was torn to shreds and blown across the boat yard. I am not ready to sew a custom fabric cover due to time constrictions with work and children so I called up the folks at Kover Klamp again and ordered their Ultra Kover. This is a very durable three part laminate material with a mesh core. I ordered a 22' x 40' cover, Kover Klips, door kit, sealing tape, and strapping. Everything but the cover was at my doorstep two days later and the cover arrived within the two week window they said it would. The cover weighed in at about 45 lbs. and I had my son help me unroll it and re-fold and roll it in a way that would make it easier to install.

This is how the cover looked after my wife and I installed it in a hurry a couple weeks ago. It is oversize and tied down irregularly.

This is a view from the port side of the bow looking aft.

This is looking at the un-trimmed cover from the port side looking forward.

Two weeks ago my wife and I installed the cover the best we could with the strong winds that day. I went back today to trim the cover to size, strap it down properly and vacuum the rest of the water out of the interior that has accumulated since the blue tarp failed. I spent most of the day working alone on this project and everything went very well. I started with the installation of the zippered door. Following the instructions from Kover Klamp I positioned the door where I wanted it and cleaned the surfaces with denatured alcohol. I cut the sealing tape to length and worked my way around all four sides of the door. After taping the door onto the cover I unzipped it and cut the cover to make the access hole. Everything worked perfectly and I was able to climb right into the cockpit and inspect the boat. I was very pleased that there did not seem to be a drop of new water inside the cover even after the heavy wind and rain from the past week. The cover also lets in a good amount of light since I ordered the white version (it's also available in clear and black).

The zippered door installed and cover trimmed with clips evenly spaced along the length of the cover.

The completed cover from the port side of the bow looking aft.

The completed cover from the starboard side of the stern looking forward.

Next I trimmed some of the excess from the bottom sides of the cover and added some darts using the sealing tape to finish them and allow the cover to follow the curve of the boat from stern towards the bow. I also started to place the Kover Klips at regular intervals on both sides of the boat and used the strapping to tie the cover on. I used a trucker's hitch to tie the strapping to the clips from one side to the other. This allowed me to pull the cover tight so it won't move in heavy winds that frequent the boat yard in the winter.

Here is what the inside of the cover looks like from the cockpit forward. I covered all of the 3/4" steel conduit with foam pipe insulation as recommended by Kover Klamps to extend the life of the Ultra Kover. I also made little boots with the pipe insulation to cover the tops of the stanchions.

Another view of the inside of the cover from the bow looking aft.

The door is small but works perfectly to gain access without having to remove the tie down strapping on the cover.

After vacuuming all of the water out of the settee storage compartments, anchor chain locker, and the little remaining in the bilge I was ready to call it a day.

All-in-all it was a great day of working on the boat. I am hoping that this cover will hold in some heat this winter so I can continue to work on Bigtooth to be sure she is read for sailing next year.

Thursday, July 16, 2015

Installing a garboard drain

Today I finally had some time to work on Bigtooth and install the garboard drain I have been planning for some time now. Before I started I had to empty 30 gallons of rain water from the bilge. (At least this was the last time I have to do that.)

I used three drill bits to get this job done. The first was a small twist bit with a 90-degree angle attachment on my drill that I used from inside the bilge at the lowest point to drill a locator hole through the hull. On this Watkins 27 that hole was on the top, port side of the keel. This will be the bottom of the hole for the garboard drain.

If you look closely just above the corner you can see the small locator hole.
Next I went to the outside of the hull and held the drain up with the bottom of the drain spout on the locator hold and marked the center of the garboard drain. Then I used a 2" Forstner bit to drill the flat-bottomed hole to counter-sink the flange of the garboard drain. (This is of course not necessary but I think it looks nicer than just screwing it on the outside of the hull.)

The 2" hole to recess the garboard drain into.
Now that the Forstner bit left the center mark I used that with a 1" hole saw to drill completely through the hull and into the bilge. 1" was just a tad too small for the garboard drain and I wanted to leave room for the adhesive to create a solid bond so I used the side of a large twist bit to enlarge the hole.

Exterior view of the holes.

Interior of the bilge with the through hole drilled.
After scraping away the anti-fouling paint from the exterior of the hull, locating and drilling the pilot holes for the three screws, and cleaning everything up with acetone I was ready for the 3M 5200. I am told that nothing says permanent like 5200 and I don't want this to come out.

Cleaned up and ready to install the garboard drain.
Before the final mounting I put the garboard drain in place and marked it inside the wall of the bilge and used my bench grinder to make it flush with the inside of the bilge. A nice bed of 5200 and I pushed the garboard drain into it's new home and secured it with three #8 silicone-bronze screws. I had good squeeze-out through the screw holes and around the outside edge of the garboard drain so I am confident that I have a void free installation of adhesive. After some cleanup and clearing the slots of the three screws I was finished with this little project.

The finished project from inside the bilge.

The finished project from the exterior of the hull.
The final step will be a little fairing compound and sanding before applying the new bottom paint. Of course I will first strip all of the old paint off and make sure there are no blisters or damage to the gelcoat but that's for another day.

Wednesday, May 27, 2015

A little woodworking

With my job, yard work, my son's baseball games, my daughter's gymnastics and dance recital I have not had much time to work on Bigtooth during that past couple weeks. Today since I had a little time before the children get out of school I thought I would start on some of the woodwork for the boat. The companionway drop boards are the only teak from the exterior of the boat that I will be able to salvage. The drop board retainers and the companionway sliding hatch retainers are split so I will create new ones from new teak using the broken ones as templates. I used my 6" random orbit sander with 80-grit sandpaper and the task went rather well. It took four sandpaper discs to complete the initial sanding since there was old varnish on the drop boards and this clogs sandpaper quickly.

Here are the outside faces of the drop boards after removing the hardware. The bottom two were scraped and sanded by my son and me using a card scraper. This was not very efficient at all.

After about 30 minutes of sanding using the random orbit sander and 80-grit paper the drop boards are ready to be cleaned and detail sanded.
Unfortunately I don't have much more time today but it feels good to get any work done on Bigtooth. I plan to first use Smith's Clear Penetrating Epoxy Sealer (CPES) then put on a spar varnish before it fully cures to ensure a strong bond between the sealer and finish.

As for the other teak parts, I think I will buy the pre-made teak hand rails from West Marine if they match my old rails. 4/4 teak locally is $30/board foot and that makes buying pre-made rails less money. It will also save me precious time and that is at a premium these days.

Thursday, May 14, 2015

The point of no return.

Today I started the process of replacing the damaged core on Bigtooth. I decided to start with the port side foredeck since it is in the worse shape. I used my Rockwell Sonicrafter oscillating tool with a new metal/wood/plastic blade in it and started to cut a triangular piece of the top fiberglass/gelcoat lamination off. This tool worked well but was by no means fast. The up side to this is that moving slowly allowed me to really see what I was doing and not over cut and cause more damage than necessary. It was difficult to know where the cored part of the deck stopped at the edge of the deck where the toerail mounts so I drilled a couple exploratory holes and cut to the inside of where the bow pulpit mounts to the deck (about 4" inboard of the edge of the deck). After prying the section of fiberglass/gelcoat off I found that I could have gone a little closer the the toerail but better safe than sorry. I will have to clean out the bad core material under the 2" lip and slide the new material under it. The only spot that was still glued down was near the forward hatch that was fiberglass and not wood core. Overall it was still rather easy to pull up with a little elbow grease.  On the starboard side I will try to get closer to the edge of the cored area but it seems to be uneven and I can always cut the starboard piece of new core shorter and add a filler in between the port and starboard pieces to accommodate this.

As for the core material, it was made from 5 3/4" x 5 3/4" x 1/4" pieces of plywood like a patchwork quilt. Most of it was so wet that I could wring the water out of it. I also noticed that this method left a lot of spaces between the individual pieces of core and there was not enough epoxy resin used so it was working like a water channel in between the fiberglass skins. I used a paint scraper to remove the parts of old core that still were glued in but there were not many of these. I will bring the top skin back to my house to clean up and sand to prepare it to be used again. I will have to sand the bottom skin before doing the new core layup so I get good adhesion. My only concern is that the inner fiberglass skin is much thinner than the top skin and since there is space between the inner fiberglass headliner and the inner skin I will not be able to push the inner skin up from below to get good contact with the bottom of the new core material. I hope that the thickened epoxy I will be using will fill any low spots and not leave voids. Of course it will likely take 30 years to find out so I suppose it's okay.

I am working under the winter cover so that I have less wind to blow around the dust that will be made during this project and the sun won't be beating down on the deck and my back. Of course this makes for poor lighting for the pictures.

Here is the panel after cutting and before removing it. You can see that on the port side it lifted up after the cut was made.
No wonder the core stayed wet after it penetrated the deck. All of this wood was wet. The darker the color of the wood, the wetter it was.

After removing all of the damaged core material.

I will be replacing all of the core on the deck and cabin top but I thought I would have to use 3/4" balsa but only needing 1/4" saves me about 50% of what I was anticipating. That's a good thing indeed.

Saturday, November 22, 2014

Winter cover

After a couple weeks of working on my days off I was able to complete a frame for Bigtooth's winter cover. I used the Kover Klamps system and 3/4" EMT conduit to construct the frame. I measured the height of the boom and built the frame slightly higher so that if I ever store the boat with the mast up I can do it without much alteration beyond bending a new center ridge pipe around the mast. This height also will allow for me to have some room to work on Bigtooth with the cover on if I find time and the winter weather is not too harsh.

Most of the frame fitted.

Here is a view of the port side of the frame being constructed.
The Kover Klamps are really easy to use and the videos on their website are really well done. When I called and placed my order they were very helpful and shipped the parts quickly. I needed to order a few more to finish the frame and they were on my doorstep a day later. I hope that this frame will last for at least ten years and I don't see any reason why it shouldn't last even longer. The ready availability of the 3/4" conduit from any hardware store will make any repairs easy.

Completed frame looking forward.

Completed frame looking aft.
The temporary tarp cover for this winter on the completed frame.
I used a basic 20' x 40' tarp to cover Bigtooth this winter and will make a proper canvas winter cover this spring that I will be able to reuse each winter. Next year will be the second year without putting Bigtooth in the water but I hope to have all of the portlights and deck core replaced before next winter. The weather and my work schedule did not lend itself to allow me to complete these projects this past summer.

I will have a lot more project pictures in the spring.

Sunday, October 5, 2014


I have to say that this has been a very frustrating summer. It seemed that every day that I was off work and not having commitments with the family, it was raining so I could not work on Bigtooth. 

Now that the cool weather is setting in I was sure that I would find a day to work on her. I actually found two and I started to build the frame for my winter cover. For this I am using Kover Klamps with 3/4" EMT conduit. I decided that I would build it tall enough to go over the boom if I end up storing it with the mast up in the future and it will give me more room to work on her with the cover on. The initial measuring, cutting, and bending of the conduit took a lot longer than anticipated. So after two days of working on it I am still not finished. I need to purchase some more conduit and spend another day at least to finish the project. The good part is that it looks great and should last for years and after everything is fitted properly and labeled then assembly should only take me about an hour or so every season after this. My plan is to make a custom canvas cover with either Top Gun fabric from Sailrite or marine canvas from Big Duck Canvas. I ordered samples from Big Duck Canvas and am very impressed with the quality of their marine canvas and the price is hard to beat. My other concern with using Top Gun fabric is the weight of a cover for a Watkins 27. Of course I forgot to take any pictures of my progress on the frame so in my next post I will show the completed frame ready to be covered with the temporary tarp for this winter.

Now if only I can get some time off work with good weather an no soccer practice for the children I will be in great shape.