Engine Part 1 – Water should stay outside, fuel should stay inside.

As promised, here is the first installment of the engine series. Back in Electricity Part 1, I explained how, at the time of purchase, the batteries aboard Milou were trying to light themselves on fire. The other two strikes against the boat at the time of purchase were: the stuffing box was severely corroded and was leaking at an alarming rate; and the hoses supplying diesel fuel to the motor were also leaking badly.

Leaking stuffing box = water entering boat (read: sinking). Leaking fuel hoses = bad diesel smell, pollution (when the bilge pump dumps it in the lake) and, I suppose, a fire hazard as well.

I’m not sure what the previous owners had done (or not done) to her, but when I met Milou she was bleeding diesel while trying to sink and light herself on fire. An unhappy boat to be sure.

Moving forward with Milou, I decided to set some priorities.

Priority number one: Do not catch on fire. (This was primarily addressed early on in the Electricity Series).

Followed closely by

Priority number two: Do not sink. 

Water should stay outside:

HPIM6140

There are so many things not right here.

Believe it or not, what you see in this picture kept me from buying the boat–that is,  until Deb made me do it. The picture shows the back of the motor, or more precisely the transmission (the thing painted green). Moving aft from the transmission is a ball of rust called the coupler; this attaches the transmission to the propeller shaft (you are right, it probably should not be so rusty). The propeller shaft is that little piece that is more brown, between the rust and the corroded green silicon bronze of the stuffing box. Yes, the prop shaft is made of stainless steel and should be a shiny silver metal color. The job of the stuffing box (the corroded light green thing with 2 bolts pointing toward the ball of rust) is to let the prop shaft spin but not let in too much water, ideally a drop or two a minute, when the shaft is spinning. It requires some maintenance. The bolts have to be tightened as the packing material (this used to be oiled flax, but is now Gore-Tex) wears. If the engine is not properly aligned the shaft will “egg” out the packing, making it leak more. Moving aft, it is nice to see that the hose which attaches the stern tube to the stuffing box is double hose-clamped at both ends. Of course, the aft-most hose clamps were so corroded that they snapped as I tried to loosen them; and in the forward-most clamp, the screw was made of inferior “stainless steel” and was rusted away to almost nothing. The thing in this picture keeping the boat from sinking (more quickly, it was leaking pretty good at the time of inspection) is the fact that the 30-year-old hose had shrunk and stuck to both the stern tube and the stuffing box. The hose itself was about 1/8 of an inch thick, and when I pushed hard with my finger, it delaminated and tore. I waited to try that until the Milou was out of the water, because I didn’t want to be stuck like the little dutch boy.

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Much better. This picture is from three days ago. The new rust on the coupler bolts is from water that is coming in from a leaking lazarette. Yep, I need to seal that up – don’t worry, it’s on a list.

When I pulled all of this apart to replace the hose (the one that I put a hole in with my finger), one of the threaded studs used to adjust the stuffing box was so corroded that it could not be removed intact. Believe it or not, finding a metric threaded stud made of silicon bronze is not easy. Our friend Kyle has a PhD in metal and has a small metal lathe in his basement. He let me borrow both the lathe and his brain as he walked me though how exactly to fabricate the needed part from a piece of stock silicon bronze. Yes, it was easier to machine the part from scratch than to find and purchase one on the world wide web.

The above picture is after I rebuilt and cleaned up stuffing box; installed new PTFE stuffing; wire-brushed and painted the coupler; installed new heavy duty (3/4″ thick vs. the old 1/8″) Buck Algonquin stuffing box hose, plus four new high-quality stainless steel hose clamps. Now the boat was no longer sinking–or to be precise, not sinking as quickly. As my friend Roy likes to say, “All boats are sinking, just some faster then others.”

Fuel should stay inside:

When we bought the boat, the 30-year-old stainless steel braided hose that led from the fuel tank to the secondary fuel filter was leaking at an alarming rate . I estimate it leaked about one to two gallons an hour. Amazingly, the previous owners did not notice that their fuel use had tripled; nor that, when the bilge pumped kicked on after every half hour of engine run time, there was a rainbow sheen of diesel on water. To be fair, considering the water leak (remember the sinking!) the pump was probably running nearly constantly, and the diesel may have been very diluted. The easiest way for me to fix the leaking diesel would be to simply replace the hose.

I did not do that.

Fuel Diagram

I have lots of little diagrams like this in my Big Book of Lists.

The leaking hose led to a CAV filter, which doesn’t really have a filter medium in it. The CAV sets up a spinning whirlpool of diesel fuel which throws water and heavier-than-diesel gunk out to the walls of the bowl, where it slides down to the bottom and waits to be drained out. The problems with the CAV are first, that it is not see-through, so you have no idea when it is totally full and about to send the bad stuff (water, algae, junk) into the motor; and second, the lack of an actual paper filter. If it had a filter, the filter would plug up before the bad stuff got to the motor. This would stop the motor (no fuel), but at least I wouldn’t have to tear down and rebuild the entire fuel system. Well, the CAV doesn’t have a filter, but there is a filter the motor itself–the so-called primary filter; it is there to save you when the CAV gets overwhelmed.

Looking forward (I am straddling the coupler), Wix primary filter and Racor secondary filter with see through bowl.

Looking forward (I am straddling the coupler), WIX is the primary filter and Racor, secondary filter, is the white cylinder with the see-through bowl full of red diesel fuel.

I have this idea/fear that just when we need the motor most, a big chunk of goober will clog the primary filter, and we will be stalled until we can find a calm place to stop and change the filter and bleed the air out of the fuel system.

I bought a very beefy Racor (500 turbine) fuel filter that has a paper element plus the whirlpool system plus a see-through bowl. So, fuel-wise, I can see when things are getting bad. But still, if the big goober hit the Racor we would be in the same situation; so I plumbed in a three-way valve and a shut-off valve behind the Racor. With the three-way valve, if the big filter gets clogged and we have to have the motor, I can simply turn the valve and the fuel will route through the CAV (now a backup), which may give us the time we need to get out of a tricky situation.

 

Filter selection three-way valve. Grey thang at he bottom is the CAV filter.

Filter selection three-way valve. Grey thing at he bottom is the CAV filter.

The fuel supply system is now in place and working well. The process from my initial idea (the little sketch) to final working install took about six separate trips up north and a ton of hours. On paper the idea was great, but when I had to put it together in the allotted space, adjustments had to be made. Once I finally got the whole thing working and was testing the valve bypass system, for some reason I was still smelling freshly spilled diesel. After a little investigation, I discovered a leaking fuel return line.

This time, I decided to just replace the hose.

Next up in Engine part 2: Winterizing Mistakes and Converting to Closed Cooling.

How the 11-year-old prepares for cruising

Urchin Olympics

More ocean-related jokes. Pretty good sea urchin, considering she’s never seen one.

New Mast

We weren’t actually planning on getting a new mast. We were happy with the old one. The standing rigging–the wires that hold the mast in the air–was of an indeterminate age and needed replacing, but the big, French hunk of aluminum towering 55 feet in the air looked fine to our eyes.

The marina where we stored our boat in Oconto has three webcams pointed at their docks–excellent for compulsive types such as myself. How’s the weather up at the boat? Have Pip and Paul left? When’s that Formosa going to move? When you’re 180 miles away from your future home, the checking-in is constant. So, when Michu went up to help John lower the mast and pull the boat out of the water in the fall of 2014, I spent some time in Big Brother mode.

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That little dent makes the whole mast useless.

In the early afternoon, Michu called. “Hi, honey! I see you guys got the mast down!” “Oh, it’s down, all right….” As the mast was being lowered, the hook securing the mast to the crane somehow parted, and the huge, heavy piece of aluminum crashed down.

Michu was on the bow when it happened. The boat was in the lifting well–a vile holding spot for boats waiting to be pulled from the water, where every piece of garbage and dead fish in a marina collects. Michu heard a low thump and turned to see the mast coming towards him. He was just getting ready to jump into the murky water between the boat and the pier, when–*clang!!*–the mast hit the top of the travel lift and stopped.

See the blue paint from th e travel lift?

See the blue paint from the travel lift?

As far as potential disasters go, things could have been worse. No one was hurt–even the guy guiding the base of the mast escaped unscathed. We feel really good about the structural integrity of our deck–the only damage was some chipping of the gelcoat around the mast step. And having the mast fatally injured in the fall was better than having it out of commission in the spring–it would take months to replace, and it would have killed our whole summer of sailing. John had to call his insurance company for the first time ever to make a claim, and we walked away with a new mast, new standing rigging and a new furler. Overall, I guess it saved us money? But it was certainly terrifying in the moment, and a hassle to pick up the pieces.

So. Much. Measuring.

When the mast was shipped, each piece of wire was about two feet too long. Like the arch project, Michu had to commit to potentially wrecking expensive hardware as he tailored it to our specific boat; this time, mistakes might mean the mast coming down at an even less opportune moment. (Michu would like me to mention Pythagoras. So there you go. Keep up with the math, kids!)

One of the most painful things about the New Mast Incident was that we were actually all done with the mast. Michu has spent three days rewiring it, installing a fancy new high-powered VHF cable, and affixing a supernova-bright LED masthead light. It was one of the only things about the boat that was completely finito.

New. And needing a tune.

New. And needing a tune.

We ended up getting a new mast from US Spar, who seemed to know exactly what they were on about with our particular boat. We *might* have gotten a little carried away with all of our newfound “savings” on the standing rigging, and thrown in new running rigging and a solent stay (yet to be installed). The new mast is lighter, a little taller, and very pretty.

This year, when the boat got pulled out of the water, we left the mast up.

Zeroing in on the boatschooling

One of the goals for January has been to finalize homeschooling supplies, and have them waiting tidily in a rubbermaid bin. Of course, the reality has been a bit messier, but we’re approaching a point where we could maybe check it off the list (for now).

Beasts!

Beasts!

We’ve gathered lots of free math materials over the past few years, but when it came down to deciding the best program for our family, we’re feeling like Beast Academy and The Art of Problem Solving will be the best choices. We’ll also be toting along the math curriculum for F.’s middle school, to make sure she’s not missing anything, as well as some Kumon books and the Key series for extra practice.

Literature is a big deal to us, and prepping for that aspect of the kids’ education will probably never be “done;” but while we’re in Wisconsin, we have access (free!) to a great resource called TeachingBooks.net. It’s a site that compiles teaching guides for different books. Our current process looks like this: find a likely-looking title of a book we feel is important (we’re sourcing from the staff at our middle school, the amazing CCBC lists, books that we remember loving, and librarian-friend recommendations); figure out if this is a book that’s either available for Kindle (free or not), free electronically from our public library, or a book we’re likely to want as a physical copy; see if a teaching guide is available from TeachingBooks.net; download a guide; and order the book if necessary. Clearly, we could spend weeks doing this, and we will–but it’s important to us all.

Literacy and language arts is a bit of a different catagory–grammar, spelling, etc. We’ve got some workbooks, and have downloaded some additional spelling/vocabulary lists. We don’t expect to spend much time on this, but hey–it’s important to know what a gerund is. Our kids will also be keeping journals–the old-fashioned, pen-and-paper kind, not the bloggy kind.

Bin full of books

Bin full of books

As far as science goes, we expect there to be a lot of hands-on naturalist work, mostly because it’s fun, and we’re stocked up on guidebooks: fish, birds, reptiles, geology, shells–it’s taking up a lot of space, but we think it’ll be worth it. We’re packing along a few kid-centered books on astronomy (yea, dark skies!) and oceanography, plus some plans for science experiments and a microscope. Still debating about the heavy chemistry text.

Social studies and history will be location-dependent. We’re toting along some US-history-and-government books to prep for time in D.C., but after that we’ll be mostly discovering the history of where we’re visiting. So much of common core instruction in this country is focused on using non-fiction texts; and while we’ll be happily ignoring most common core standards, we will be relying on a lot of our lit to provide context and history for our location.

Learning Spanish is important to us. We all love Duolingo, but we don’t expect to have the internet capacity to keep it up. Instead, we’ve got the Rosetta Stone for homeschooling (thanks, Rebeca!), a few workbooks for the kids, and a wide range of dictionaries. Not sure how this will work out in real life, but at least we feel equipped.

Fiddlin' with friends

Fiddlin’ with friends

Music, it turns out, is a bit of a tough one for us. F is in her fourth year of violin, and third year of fiddle class, so we think she’s pretty well prepared to continue on her own for a bit. We’ll be bringing some sheet music, downloading some YouTube videos, and most likely be checking in occasionally with her teacher via Skype. T, on the other hand, is in year three of cello. Oh my lord, the cello. F already owns a neatly-contained violin, but purchasing and storing (and tuning) a cello is proving to be a bit of a hurdle. T is also not as far along in his musical education, so going it alone is going to be tough. We’ve tried steering him towards the ukulele, but he’s not having it. I guess our current plan is to attempt the same type of program as our violinist, and not worry too much if it all falls apart.

Then there’s the category of general resources. We’re learning how to use Kahn Academy Lite, and will be checking if we can put all of Kiwix on the kids’ Chromebook. We are HUGE fans of Crash Course, and we’re debating about the old-school WorldBook encyclopedia that we have…hopefully there will be room aboard!

So, internet community–what do you think? Any gaping holes? Any books we should absolutely be including? Weigh in!

Hard water

Ice skating on Lake Monona. The iceboats were cookin'.

Ice skating on Lake Monona. The iceboats were cookin’.