Outer stem repair on 37 Egg Harbor, a short section

Discussion in 'Wooden Boat Building and Restoration' started by sdowney717, Dec 18, 2024.

  1. sdowney717
    Joined: Nov 2010
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    sdowney717 Senior Member

    Glued on white oak strips to lower outer stem port side.
    Filled it out nicely.

    And drilled the 3 bolt holes on front.
    I ran into an issue with middle one, my new long 3/8 spade bit with screw threads on end jammed in the hole in the last section attached. I have been drilling after each glued on section. Could not remove it, could just slightly twist it. Got a more powerful drill, and the shaft bent slightly in the hole and wrenched my hand. Solution was take a 2 lb hammer and slam the end driving the drill bit through the last 2 inches of oak as if it was a large nail. Came out ok. It acted like it was caught on a bronze nail, which prevented the flattened end from turning, Is all I can think. I still have to drill to the full size all 3 bolt holes, right now they are at 1/2" but the bronze bolts don't fit yet. Thinking I need to get a long 9/16" drill.

    upload_2024-12-29_16-38-59.png
     
  2. sdowney717
    Joined: Nov 2010
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    sdowney717 Senior Member

    Today used grinder to shape all this new wood. Got it looking pretty decent.

    upload_2024-12-30_17-58-34.png

    upload_2024-12-30_17-59-27.png

    Will work on this side next day. Glue in some wood in various places. Including a plank end on the other side. I only had 3 hours of work done today.

    upload_2024-12-30_18-0-36.png
     
  3. sdowney717
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    sdowney717 Senior Member

    20 years ago, I had that splash rail off and the bronze screws looked decent. However today they show a lot of corrosion on the heads and several had corroded in half.
    I am thinking rather to use 316 SS screws. The ones I pulled out of the bow, 20 years later only had slight surface corrosion. And they were under waterline.
     
  4. sdowney717
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    sdowney717 Senior Member

    I used a 1/2" steel rod with a very sharp flat 90 degree tip and a fast rpm drill and forced that thru the holes. It ground away the wood, turned it into powder making a perfect bolt hole, and made the steel rod get hot.

    I had first driven it into the holes using a hammer and then put a vice grip on the end to twist it back out, and that raised up teeth in the steel which also helped grind away the interior wood hole when chucked into the drill. Don't need to buy a drill bit anymore. I found clearing the wood powder in between running the steel rod in the holes also helped.

    The bolt holes are nice and straight.

    I could have cut some sharp notches in the steel rod end too. But I wanted to wear the wood into a straight round hole the whole length of the hole at once, not cut away wood and have it wander off center. Meaning I wanted to preserve both exit hole ends in the oak.

    I think the idea of using a vicegrip to raise metal on the rod is a good idea.
     
  5. sdowney717
    Joined: Nov 2010
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    sdowney717 Senior Member

    Glued in some missing pieces around the plank ends, which were like that for decades.

    upload_2025-1-1_16-53-54.png

    etc...
    upload_2025-1-1_16-55-42.png

    Will be splining these large gaps between planks
     
  6. sdowney717
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    sdowney717 Senior Member

    Very cold and windy today.
    Ground down the filler oak and splined a section of planking both sides.
    Then I smoothed and filled where planks meet bow

    Lowest section of pic has a bolt still in place. Plan to drive it out to examine it and coat it with JB weld. And thinking to put a thin piece of oak glued over that area of stem. about 1/8" thick.
    It does not need it, but I like the idea. I think over 54 years, this forward stem and planking up here has seen lots of wear and tear.

    A mix of PL and sawdust does form a tough abrasion resistant layer on wood surfaces. It's hard to sand using 40 grit RO 5" sander, easier to sand plain wood.

    After it also gets a layer of 52oo, this will never come apart again, would have to be cut apart. And it will never leak. The worms will never gain entry again. Still plan to embed that stretchy nylon swimsuit black fabric in the 5200 up here.

    upload_2025-1-3_16-53-55.png
     
  7. sdowney717
    Joined: Nov 2010
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    sdowney717 Senior Member

    Did get some thin oak on the starboard side lower stem, but it's been super cold, windy, and snowy. This coming Monday maybe can get out there. We just got 5" snow and it will freeze again tonight. Will not have been able to do anything for almost a week. I did get all plank gaps splined.
     
  8. sdowney717
    Joined: Nov 2010
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    sdowney717 Senior Member

    More done today, finish splined both sides of bow planking. Sanded and smoothed the stem bow repair, its looking real nice.
    Next step finish the planking

    One more day to fill out lower starboard side of stem

    upload_2025-1-17_17-53-39.png

    upload_2025-1-17_17-54-30.png
     
  9. sdowney717
    Joined: Nov 2010
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    sdowney717 Senior Member

    Freezing cold in the teens, and we had couple snow storms, marina was icy and snowy for a week. But today 53, and the place is drying out, so I could get something done

    Sealed up the port bow, Mix of PL and sawdust
    Filled the curved planks, it is all smoothed out. I had pulled a lot of screws and replaced them.
    I had pried out the old screw plugs and reused them. Will need sanding and smoothing although it's pretty decently flat right now.
    upload_2025-1-26_17-13-29.png

    Starboard side almost done, keel all done up in the bow.
    I like how I widened it up front. with oak strips.
    On keel bottom, the notch is where the worm shoe starts, and going up the curved bow is a SS keel protector.
    I am surprised it is in OK condition seeing 64 years in the salty sea.
    upload_2025-1-26_17-15-51.png
     
  10. sdowney717
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    sdowney717 Senior Member

    This entire bow area is going to be overcoated with 3M 5200 and that stretchy black nylon fabric. Worms wont ever find any access to wood.
     

  11. sdowney717
    Joined: Nov 2010
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    sdowney717 Senior Member

    Well, looking a lot better than when hauled out, very nicely done, I think.
    It is filled, and smoothed and has a gloss. Just as a final skim layer of PL using a 6" plastic knife. PL is 100% waterproof.
    After this I will coat with 3M 5200 and that black fabric.

    It's looking like a glass boat in the bow what with the way the planks are so fully sealed.

    upload_2025-2-1_17-59-37.png

    I have had people asking me is that West System!
    upload_2025-2-1_18-0-27.png
     
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