May 05 2010

Zenzi: There goes the neighborhood . . . .

Published by under Boats

A beautiful boat . . . .

This is Zenzi, purported to be owned by Larry Ellison (think Oracle and America’s Cup).  It anchored out in the bay in Cabo for a few days . . . and, we were neighbors.  Then she set sail.

How sweet it is . . . .

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May 05 2010

Sailboat Heat Exchanger Problems and Repair

One fine day, I started the engine of the sailboat and saw the temperature continue to rise–rather than holding at its normal low temperature.  Upon further inspection, there was about a gallon of lovely, green anti-freeze sloshing around in the bilge–and, the culprit was the heat exchanger.

Cooling on a sailboat (or powerboat) is a bit different than your car, but the principle is the same.  Sea water is too rough and has too many particulates to circulate through the machined parts of your motor (plus salt water electrolysis can eat away internal parts of the motor), so a closed system with freshwater is used.  This is exactly like your car.  The systems on sailboats even use anti-freeze to raise the freshwater boiling point to a higher temperature because–well, boiling water (steam) isn’t going to keep your engine cool.

The main difference between the two systems is that instead of a car radiator with its hundreds of internal cooling fins that uses fresh air from the car fan to decrease the temperature, a sailboat has a heat exchanger.  This little device has a series of tubes, and it runs sea water through some of them and fresh water through the others and heat from the fresh water is transferred to the sea water–which is then mixed with the exhaust and jettisoned out the back through the exhaust.

So, here’s the problem: at some point, the idle was set to a lower number on the motor–down to 600 RPM.  It probably happened at the boat yard during the last tune-up.  This is a normal idle for motors, but on the Universal M-25XPB.  The three-cylinder diesel shakes violently at 600 RPM.  Universal Diesel even recommends that the idle be set higher to 1100 RPM (I have since set it back to the correct settings of 1100 RPM).  All of that rattling around and vibration basically shook the fittings right off the heat exchanger–putting a pin-hole into the outer body in the process.

While it looks pretty simple and sounds pretty simple, and, in concept should BE pretty simple, there is a caveat.  A heat exchanger has a copper body, stainless steel bolts, brass water connectors, the pieces are soldered together, and even includes a pencil zinc.  It is the perfect example of what can happen when dissimilar metals are placed together (although the zinc is supposed to eradicate the electrolysis part of the equation).  I was concerned about finding someone who could do the work properly . . . .

Fortunately, one of my friends knew a metal craftsman.  We drove to his metal shop and as we were pulling in, a brand new, stainless steel swim platform/live-well combination was pulling out of the yard.  It was beautiful work and I felt better already.

The guy looked at the heat exchanger and all the pieces and said, “no problem.”  He said he would weld the brackets back together, clean everything, fix the pin-hole, solder everything back together, clean and pressure test everything–and, that it would be ready tomorrow afternoon–around 3pm.  At the time, my spanish was not good enough to negotiate the price, so my friend did it for me.  After a couple of rounds of friendly bartering, they agreed on $100. (I guess he wasn’t following the: Good work, Cheap, Fast: Pick Two” rule.)

And, here is the finished result.  So beautiful, I could photograph it on the settee–even painted the exact same color as the motor–classy.  It installed in about 45 minutes, and after the usual hose tightening and air-bubble bleeding, hasn’t leaked a bit and the motor has stayed nice and cool.  And, lastly, I hand-siphoned the spilled anti-freeze from the bilge and the local boat yard recycled it for a modest fee.

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May 04 2010

The Baja Bash (and another Beautiful Cabo San Lucas Sunrise)

It has been quite a while since I have updated the blog–but, things have gotten a bit hectic.

There was a repair to the heat exchanger on the motor, the Tsunami from the earthquake in Chile, a trip into the Sea of Cortez with friends, lots and lots of client work (that has been the consuming part), and now, the preparation for the return trip home.

That list is a bit lengthy, unfortunately, but here it is:

  • Clean the filter screen in the fuel system
  • Clean debris from the bilge pump/screens and hoses. If that does not resolve the slow pumping problem, replace. I tested it the other day, and it was pumping slowly, if at all. It has power and you can hear it working. It is certainly not pumping the 500 gph rating. If the hoses are filled with gunk, it should return to normal operation once they are cleaned. If not, it must be repalced. Gotta have a bilge pump.
  • Mount the flag holder to the first spreader (a lashing–no drilling involved), and mount the radar reflector on the standing rigging. On the sail down, we attached the reflector and our courtesy flags to a halyard, but I took them down because the rolling from the waves caused this contraption to swing back and forth–and, it was resting against the spreaders–basically sawing through the halyard.
  • Change the oil in the motor. Bought the hand pump to remove the old oil in La Paz a few weeks ago. Have the new oil aboard, and purchased a new filter at a local store.
  • Sew temporary repairs to the first reef points and rig the second reef. On the way down, the winds were 45+ knots and we had to gybe. We made it through, but the reef points tore about an inch on two of the four. I’ll use the palm and waxed thread and sew those together to keep them from ripping any more and out of their insets. I’ll certainly need to reef on the bash back to San Francisco.
  • Tie down the front netting with heavier-duty line. The netting on the bow was fixed with plastic rings, and they simply cannot endure rough conditions. I purchased some nylon line and am sewing it to the railing for a more permanent fix.
  • Clean the bottom thoroughly, and replace zincs. I finished this yesterday (with the exception of the zincs)–and, it took about 1.5 hours. The last guy I paid was a friend of a friend, and he kinda took me for a ride. “Oh, yeah, it’s CLEAN.” Perhaps we simply have different definitions of “clean.” Regardless, it is super-clean now.
  • Mop the deck with fresh water. The sand blows all the time–it is a desert down here. Time to mop the deck and get all that dirt off.
  • Purchase 2 jerry cans for water. One of the two 25 gallon water tanks sprung a leak. The best idea would be to pull it and have it repaired, but that process may be cost-prohibitive. As an alternative, 2 more jerry cans of fresh water would suppliment the two that I already have and give me 24 gallons–one gallon less than the tank, and would cost hundreds less.
  • Buy the provisions. Already made the menu and shopping list.
  • Fuel up, and top off the water tanks.
  • Wait for a good weather window.

I’ll keep you posted as to the progress. For now, please enjoy this morning’s sunrise.

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Mar 08 2010

Biological Infections in Diesel Fuel . . . and Biocide

Published by under Boat Maintenance

Here is a brilliant discussion of biological infections in diesel fuel and the use of biocide and tank cleaning methods to cure your system.  It includes all of the science and safe practices to accomplish the cleaning of your tank.

http://sail-delmarva.blogspot.com/p/diesel-biocides.html

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Feb 27 2010

Tsunami in Cabo San Lucas, Mexico

Today, around noon, two 4-foot tsunami waves from the earthquake in Chile hit Cabo San Lucas. I had early warning, pulled my anchor, and headed out for sea and deeper water (where the waves wouldn’t break), and didn’t really notice them come through.

The Port Captain closed Cabo San Lucas Harbor to all commercial activities, and the reports were that the observed wave height was 2 – 4 feet high as it passed the Galapagos Islands.

There was some damage to some of the boats in the marina (from the absence 4-foot drop after the waves came through–hitting their keels/motors on the ground), but nothing happened to either the boat or myself. In fact, I made the best of it, and had a wonderful sail in 12 – 15 knots of wind, and saw about 5 pods of humpback whales over the course of the day.

I’ll give a full report soon, but for right now: I am safe, back on the anchor in the bay of Cabo San Lucas, the boat is put away, and everything is fine.

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Feb 08 2010

Bring It ON–The America’s Cup

Published by under Boats,Sailboat Racing

This was a big weekend for sports. There was, of course, the mother of all football games–the Superbowl. For sailing fans, however, the mother of all sailboat match racing, the America’s Cup, was at **GASP** 1am this morning.

Here is the shortened version of what has happened since the last event:

The Swiss team, Alinghi and owner, Ernesto Barterelli, beat New Zealand, and won the last America’s Cup. It was tight racing the whole series, and a real nail-biter with New Zealand beating the US team, BMW-Oracle (owner Larry Ellison), and then Alinghi beating NZ.

Of course, I was rooting for BMW-Oracle. They are based out of the Golden Gate Yacht Club in San Francisco–a venue that has hosted many races in San Francisco and has a great, non-stuffy sailor bar . . . so, I’m a fan.

Immediately after Alinghi won (seriously, within minutes), a fake yacht club owned by Ernesto Barterelli, filed a formal challenge–beating BMW-Oracle to become the challenger of record. The rules for the America’s Cup state that the Defending Team and the Challenger of Record must agree on the rules. The owner of Alinghi, Ernesto Barterelli, owned both teams, all the officials, and the rules went crazy in favor of him winning and keeping the Cup. (Stuff like, EB can change the rules at any time. EB can dismiss any team from the competition for no reason at all at any time. Anyone who used to be on the Alinghi team is not allowed to sail for any other team in the competition–meaning Russel Coutts.)

There has been something like 11 lawsuits, and 3.5 years, and all sorts of politics around the AC. At the end of it, Golden Gate Yacht Club was able to wrestle the Challenger of Record title away from Ernesto Barterelli, but what they got was a two-team match–not the 18 team match-racing that we all wanted.

The two teams agreed upon a unique set of rules for the boats. They are racing 90 foot by 90 foot multi-hull boats. That’s right–90’x90′. Alighi is fielding a giant Catamaran with traditional sails . . . and, BMW-Oracle produced a trimaran with a 185-foot standing vertical wing. Yes–a WING. The speed tests for the BMW-Oracle had it clocked doing 25 knots in 7 knots of wind. Uhmmm . . . . Yeah.

The rules are still pretty skewed. Supposedly, the Alinghi boat performs better in light wind, and the BMW-Oracle boat will be a killer in heavy wind, but doesn’t do so well in the light stuff. But, those are supposeds–no one really knows.

And, getting a race off is going to be tough. The sailing instructions say no sailing in winds above 15 knots, the Race Committee can call the race if the wind shifts more than 30 degrees, no racing is the swell is more than a meter high, and there is obviously no racing if there is not enough wind. This is a tough set of conditions to meet in Valencia, where the winds are shifty.

Personally, I want to see the boats race and hold together or blow-up, be a close race, or a blow out, or whatever they are going to do. The suspense is KILLING me.

The races today were cancelled. Not enough wind. So, they will try again on Wednesday at **GASP** 1am, again . . . .

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Feb 05 2010

My Kind of Fun: Dinghies Racing 25 NM in the Open Ocean

Published by under Sailboat Racing

This is my kind of fun . . . .

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Feb 03 2010

BMW-Oracle Training–Final Days Before the America’s Cup

Published by under Boats,Sailboat Racing

This has to be just about the most beautiful thing on the planet. BMW-Oracle’s monster Trimaran racing along on one hull. Truly a thing of beauty . . . .

We are 5 days away. Racing will be about 1am on Sunday . . . .

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Jan 24 2010

Warning: The Death Star has Arrived

Tourism is the blood supply of Cabo San Lucas. It brings money, people, mega yachts, fishermen, and a huge supply of Nationals from all over Mexico to work. Without it, Cabo San Lucas would be the simple fishing town it was 30 years ago. There are two sources of tourism: the time shares and resorts, and cruise ships. On my previous two trips to Cabo San Lucas, I stayed once in a Beach resort, and the second trip, we stayed in a private condo. So, I had already been familiar with the former, and apparently, the largest producer of tourists. Now that I am anchored out in the bay, I have become intimately connected with the latter–the cruise-ships.

If you haven’t seen them before, these vessels are enormous. They are entire floating cities, complete with off-shore Casinos, medical facilities, shopping malls, exercise gymnasiums, your choice of restaurants, bars, discos, and vast neighborhoods of rooms. They hold some in the range of 5000 – 6000 people, and provide services for all of them. They arrive in the bay between 5:45am and 10am, and typically depart between 5pm and no later than 9pm. They never stay–Cabo’s fluky winds would spin them around their anchor dangerously considering that each one is hundreds of feet long. When they arrive at pre-dawn hours, they remind me of the first time the Death Star came into full view in the Star Wars movies–ominous, a giant object filled with people and things.

Once they arrive, the Port Captain sends out a representative to collect the necessary fees and complete paperwork and inspections, and then these huge cities start off-loading their precious tourist cargo. Entire portions of the Cabo San Lucas come alive in anticipation of the wandering groups of week-old friends who have arrived and seek a place to eat, a good margarita, and to purchase some silver or a cuban cigar–all the while engaging in the small-talk of new, but tightly-bound friendships.

In town, everyone knows about the cruise-ships. Everyone knows how many will be in-port today: two, four, just one . . . This is their business–to sell goods and services to tourists. The tourists staying at the resorts will still be sleeping. They invariably took advantage of the nightlife–something the cruise-ship guests miss because of the early departure times. So, the wandering hoards are coming from one source. Others aboard the cruise-ships go directly to the activities they have planned: snorkeling, jet ski rentals, a hi-speed water tour, para-sailing, sailing, and right now, whale watching.

My relationship with the cruise-ships is different, and I think, much more intimate than most. I can literally feel them arrive. Marishanna is a race-boat with no insulation, and so I often hear smaller boats motoring past, but the cavitation of the huge propellors of the cruise ships is unmistakable. Something I can hear from a few miles away. Once they are in port, the clanking of the giant chain links of their anchor is amplified and echoes through the water and into the metal parts of my boat.

It is both eerie and unmistakable . . . and a daily component of my morning routine since I arrived. 6am, clank, clank, clank, clank, clank, clank, clank, start the coffee, go above decks, survey the boat, check the anchor, and, well, you get the idea.

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Jan 22 2010

Marishanna has a clean bottom . . . .

Published by under Boat Maintenance,Wylie 39

You may not be able to tell, but Marishanna has a clean bottom.  I have been keeping fairly current with it–scrubbing the waterline, and softly sponging the underwater paint, but the other day, I noticed that there was only one zinc left on the prop shaft, and that it was nearly gone.  So, I hired a diver to come out and professionally clean the bottom of Marishanna, replace the zincs, and even coughed up a bit extra to have him scrub the bottom of the dinghy.

Zincs are metal attached to the boat that is lower on the chart of elements that all the other metals on-board.  If you have an electrical system, you have magnetic fields, and when you mix a magnetic field with sea water, it needs some place to go.  On boats, you put zincs and give this process something “to eat”–so, that the process will leave your brass, stainless steel, and other metals alone.  It is sort of a boat owner’s offering, if you will.

Once they are gone, your boat vitals are eroding (like the thru-hulls can be made of metal).  So, it is important to keep them replaced and current.  And, Marishanna’s zincs have been renewed–a fresh offering to the god of electrolysis.

Note: They really call them “Sacrificial Anodes

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