Day 248
The Doubler Plate Decision
Kevin and Jenny tested the Yanmar engine in the dinghy, monitoring RPM and prop shaft vibration. The dock mooring ring shifted significantly within the mortise, confirming the wood had rotted through to the back. They concluded shims would be ineffective and a structural doubler plate was required. Kevin ate corned beef and limpet broth, leaving a letter for Jenny on the table. Jenny sat at the kitchen table staring at the letter as the Yanmar engine echoed across the water. The afternoon heat reached 32°C with a dry trade wind breeze; the tide receded, exposing slick rocks. Jenny made a sketch of 'The sea beet in her notebook' and later 'Way the water hits the new stainless steel'. Detailed sea beet salt gland illustrations were completed. The rain tank gained about 25 litres twice. A jellyfish bloom drifted into the bay, pale and slow. In the evening, rain fell steadily as the tide reached its lowest point, exposing kelk-covered rocks. The epoxy on the mooring ring set in the damp air. At night, heavy rain drummed on the corrugated roof and lashed the dock. The tide rose, lapping at new pilings as they huddled under the porch, smelling salt and damp earth.
Kevin and Jenny tested the Yanmar engine in the dinghy, monitoring RPM and prop shaft vibration. The dock mooring ring shifted significantly within the mortise, confirming the wood had rotted through to the back. They concluded shims would be ineffective and a structural doubler plate was required. Kevin ate corned beef and limpet broth, leaving a letter for Jenny on the table. Jenny sat at the kitchen table staring at the letter as the Yanmar engine echoed across the water. The afternoon heat reached 32°C with a dry trade wind breeze; the tide receded, exposing slick rocks. Jenny made a sketch of 'The sea beet in her notebook' and later 'Way the water hits the new stainless steel'. Detailed sea beet salt gland illustrations were completed. The rain tank gained about 25 litres twice. A jellyfish bloom drifted into the bay, pale and slow. In the evening, rain fell steadily as the tide reached its lowest point, exposing kelk-covered rocks. The epoxy on the mooring ring set in the damp air. At night, heavy rain drummed on the corrugated roof and lashed the dock. The tide rose, lapping at new pilings as they huddled under the porch, smelling salt and damp earth.
Scenes
the dock · dawnThe Final Load Test
Kevin and Jenny stand on the dock as the Yanmar engine hums in the mounted dinghy. Jenny monitors the RPM while Kevin watches the prop shaft for any unusual vibration under load.
Kevin and Jenny tested the dock mooring ring under load by running the Yanmar engine in the dinghy. The ring shifted significantly within the mortise, confirming that the wood had rotted through to the back. They determined that shims would be ineffective and a structural doubler plate is required to secure the dock properly.
Keep it steady, Kevin. I need to see if the bolts actually held the vibration.
Lean my weight against the mooring ring to test for movement while the engine runs.
💭 thought
Holding at 1800. Feels smoother than yesterday, but there’s still a tick at 2000.
watch prop shaft closely, note RPM and any wobble in the shaft or bracket as Jenny leans on the mooring ring.
💭 thought
That tick’s in the bracket, not the engine. The ring’s still loose. It’s shifting. The bolts held but the mortise is compromised. Cedar shims in the morning. The oak’s shot.
Press harder against the mooring ring and watch for side-to-side movement while Kevin monitors the prop. </think>THOUGHT: The ring moves—a quarter inch, maybe more.
💭 thought
Mortise is gone. Shims are a waste. Need to cut back to sound wood and bolt a doubler plate.
throttle down the Yanmar, kill the ignition, and step onto the dock to examine the mooring ring mortise up close.
💭 thought
A doubler plate will work, but we need to make sure the timber underneath is solid.
Squat down and poke the edge of the mortise with my thumb to see how far the decay goes.
💭 thought
Rot runs deep. Two inches at least. We’ll need to remove the ring, cut out the bad timber, and either scarf in a new piece or bolt a steel plate through to the sound wood below.
use the nail puller to lever the mooring ring out of the mortise, then probe the cavity with the blade of my knife to check the extent of the decay.
💭 thought
If we don't cut it back, the new bolts will just pull through next time the boat hits.
scrape away the soft wood from inside the mortise to see where the solid grain starts.
💭 thought
It’s rotted clear through to the back. We’ll have to take out a chunk and either scarf in a new piece or run bolts through to the solid timber behind.
continue scraping out the rotted wood with the knife and nail puller until I reach firm, dry grain, then measure the cavity for a repair piece.
💭 thought
the dock · morningDay 248, Dawn
The light onshore breeze carries the scent of salt as you gather the materials at the dock to begin the structural repairs before the supply boat arrives.
No narrator was available, so nothing about this stretch was recorded.
The wood is too soft, I'm using the heavy bolts and the new plate.
pull the crowbar from my belt and pry at the first rotten plank.
💭 thought
Take the aft one first. I'll cut the sisters to length while you clear the rot.
Walk to the workshop, retrieve the circular saw and measuring tape, then return to the dock to measure and mark the replacement timber lengths for the sistered stringers.
💭 thought
way make sure they're long enough to overlap the solid section.
wedge the waybar into the gap of the aft plank and pull with my full weight.
💭 thought
I'll mark the cut line where the solid wood starts, then add thirty inches for overlap. That should bite into the sound stringer.
Use the tape measure to find the edge of sound timber beneath the rot, then mark the sister plank for cutting with the pencil, ensuring at least thirty inches of overlap beyond the rotten section.
💭 thought
Just don't cut them too short, we need that surface area for the bolts.
shove the crowbar deeper under the timber and heave until the wood gives way with a crack.
💭 thought
They won't be short. I'm measuring off the sound wood, not the rot.
Set the circular saw depth to cut through the sister timber in one pass, then rip the first sister plank to the marked length.
💭 thought
the keeper's cottage · middayA Quiet Stretch
Back at the cottage.
Kevin finishes his meal of corned beef and limpet broth, leaving the letter on the table for Jenny to consider. The air is warm with the trade wind as he heads toward the dinghy to perform the final load test on the Yanmar engine.
I'm starving.
Walks to the kitchen, sits at the heavy wooden table, and opens the last tin of corned beef.
💭 thought
I’ll heat it up. Limpet broth too, if you want.
walk to the stove, put the tin of corned beef in a pot with a splash of water, turn on the wood stove flame low, then grab the limpets from the bucket, rinse, and drop them in a second pot to boil.
💭 thought
Broth is fine. Just salt.
Scrapes the corned beef out of the tin with a fork and stares blankly at the sketch of the sea beet in her notebook.
💭 thought
Eat first. Talk after.
ladle the hot corned beef onto two chipped enamel plates, set one in front of her with a fork, pour the limpet broth into two mugs, set one down beside her plate, sit opposite with my own plate and mug.
💭 thought
Right.
Takes a heavy bite of the salty beef, chewing slowly while watching the steam rise from the broth.
💭 thought
Broth’s good? Just salt, like you asked.
take a slow bite of corned beef, sip the limpet broth, wipe my mouth with the back of my hand, then slide the letter toward the center of the table where she can see it but doesn’t have to touch it.
💭 thought
It's fine.
Picks at a piece of beef with the fork, watching her look at the letter.
💭 thought
I’ll send Tom’s letter. Be back in ten.
push back the stool, stand, walk to the radio shack, flick the shortwave on, tune to Tom’s frequency, key the mic, and begin: “Tom, this is Kevin. Receiving?”
💭 thought
the dock · afternoonThe Engine Test
Jenny sits at the kitchen table, staring at the letter while the sound of the Yanmar engine echoes across the water.
The afternoon heat is heavy at 32°C as the trade wind provides a slight dry breeze. The tide is steadily receding, exposing the slick rocks of the tide pools. Kevin and Jenny are at the dock, focusing on the final mechanical checks needed before the supply boat arrives in six days.
Kevin — walk slowly toward the dinghy, hands loose at my sides, eyes on the water where the prop churns. I don’t look back at the cottage.
💭 thought
"The ring is moving, Kevin. Don't pull the load yet."그런DO: Stand up, pick up the rusted seed tin, and walk out to the dock to watch the water vibrate.
💭 thought
Heard you. Killing the throttle.
Walk back to the dinghy, kill the Yanmar, let the prop freewheel to a stop. Step onto the dock, crouch at the mooring ring, probe the mortise with fingers — feel the play, the rot depth.
💭 thought
The wood is mush inside. We need those oak wedges for real, not just more shims.
Reach into my pocket for the pocketknife and scrape a sliver of the timber to see the extent of the decay.
💭 thought
Wedges won’t bite. Need a plate — through-bolts, epoxy bed. Let me get the stock.
Pull my hand free gently, stand, and walk toward the workshop. Don’t look back. Keep my voice low, steady. Open the shed door, scan for the bronze stock we saved — the one meant for the propeller sleeve. It’s thick enough.
💭 thought
Bring the thick stock. And the drill. I'll clear the mortise while you're in there.
Trace the edge of the rotten timber with my thumb, measuring the gap where the salt has eaten the grain.
💭 thought
Back in five.
Step into the workshop, grab the bronze bar stock — 60mm OD, 30mm ID, the piece I machined for the prop sleeve but never used — and the battery drill with the 12mm auger bit. Slip the tap set into my pocket.
💭 thought
Hurry. The tide's starting to pull and those bolts are holding on by rust.
Pick up the chisel and the mallet, begin clearing away the softened wood from the mooring ring to see the solid grain beneath.
💭 thought
Got it.
Walk fast back to the dock, bronze stock under one arm, drill in hand. Stop at the edge — Jenny’s on her knees, chisel biting into the punky wood, mallet ringing. I don’t speak.
💭 thought
Watch the grain. We need a clean edge for the plate.
Lay the bronze stock down on the deck and mark the drill points with a pencil.
💭 thought
the dock · eveningEvening Tide Prep
The sun begins to dip as the tide reaches its lowest point. The pair prepares the gear for the night.
The rain continues to fall in a steady, rhythmic drumming against the roof of the cottage. The tide has retreated to its lowest point, exposing the slick, kelk-covered rocks and the tide pools around the dock. The epoxy on the mooring ring is setting in the damp air, waiting for the full cure before the morning light.
I'm going down to the tide pools. Don't start the bolts on the dock yet.
Picks up the bucket and walks toward the exposed rocks, clutching the notebook and a mesh bag.
💭 thought
Back before dark. Headlamp's on the shelf if you stay late.
Walk up to the cottage porch, pick up the LED headlamp, and lean it against the door frame where she'll see it. Then grab the 19mm ring spanner and the epoxy tub from the workshop and head back to the dock to inspect the mooring ring mortis
💭 thought
I'll take the light if the tide comes in faster than expected.
Kneels on the wet sand, scanning the dark pools for the clusters of limpets near the receding water.
💭 thought
Light’s yours. Shout if the water starts sucking back.
Kneel at the dock’s edge beside the mooring ring, clear out the rotted wood chips from the mortise with the old screwdriver, then dry-fit the 6mm stainless doubler plate I brought from the workshop.
💭 thought
Watch the angle on those bolts. The salt will eat the threads if they aren't seated deep.
Stands at the edge of the jetty, the beam of her flashlight cutting through the rain as she watches the tide lick the pilings.
💭 thought
Got it. I’ll deepen the seat so the shank’s fully buried.
Switch to the 12mm Forstner bit in the brace, bore the mortise deeper until the doubler plate sits flush with the dock surface, then clear the chips and test-fit the plate again.
💭 thought
Use the thick epoxy for the holes. We need it to cure before the rain stops.
walk over to the dock, hand him the tube of epoxy and the mixing paddle.
💭 thought
Right. Mix it stiff.
Squeeze a bead of thickened epoxy into each bolt hole in the mortise, coat the shanks of the two 10mm stainless through-bolts, drive them through the doubler plate and mortise, fasten washers and nyloc nuts, then wipe excess epoxy from the
💭 thought
Don't over-torque them. You'll just strip the remaining fibers.
Step back from the rotting planks, watching the tide rise to meet the new hardware.
💭 thought
Half turn past seat. Epoxy does the work.
Snug each nut with the 17mm ring spanner until the doubler plate seats firm, then exactly half a flat more. Set the spanner down and watch the epoxy squeeze-line for movement while the tide laps the planks.
💭 thought
Let it set. The tide is coming in fast now.
Squat down on the jetty, opening the notebook to sketch the way the water hits the new stainless steel.
💭 thought
Green in ten. Full cure by morning.
Stand, wipe hands on the rag, pick up the headlamp she left on the planking, and walk back toward the cottage with her notebook tucked under my arm.
💭 thought
I'll check the tension in the morning light.
Walk back across the slick jetty, feeling the rain on my neck, the weight of the notebook heavy in my hand.
💭 thought
Stove's cold. I'll get water heating.
Walk up the path to the cottage, shove the door open, drop the headlamp on the table, and kneel to rake ash and lay kindling in the woodstove.
💭 thought
the dock · nightNIGHT
The rain shows no signs of slowing, and the tide is beginning to turn, the first small waves reaching toward the exposed pilings.
The rain has turned into a heavy downpour, drumming against the corrugated roof and lashing the dock. The tide is rising steadily, lapping at the new pilings as Kevin and Jenny huddle under the porch, the air smelling of salt and damp earth.
The water is rising faster than I thought. We need to get these bolts tight before the surge hits them.
Stands up, wipes her wet hands on her trousers, and walks back to the dock to check the way ring.
💭 thought
Right behind you.
Walk back to the dock and grab the heavy wrench to torque the mooring ring bolts before the water rises further.
💭 thought
Be careful with the torque. The wood is soft, it might strip if you go too hard.
Kneels back down on the timber, placing her hand over the bolt to feel for any slipping as he works.
💭 thought
Won't lean on it. Just snug.
Apply steady, measured pressure on the wrench — firm but not brutal — watching the bolt head seat and feeling for any give in the wood under Jenny's hand.
💭 thought
It's tight enough. Let's see if the tide actually respects it while we wait.
Runs a hand over the surface of the bolt, checking for any new cracks forming in the wood.
💭 thought
Aye.
Wipe the wrench clean on the rag, tuck it back in the tool belt, and stand to watch the water climb the pilings — checking the ring for any shift as the surge hits.
💭 thought
Let's get back to the way. The rain is getting worse and I'm freezing out.
Stands up slowly, her knees aching, and follows him away from the edge toward the jetty.
💭 thought
Come on.
Turn and walk with Jenny back along the jetty toward the cottage, keeping pace with her slow steps, shoulders hunched against the rain.
💭 thought
What changed
a Lumora Build experiment — live experiment: Kevin & Jenny think on free, open models — what they say is their own.