Tag archive for "exhaust elbows"

B Dock, Velkommen

Exhaust Elbow Repair

No Comments 12 January 2012

Even products that look absolutely flawless can can occasionally have problems. Right before Christmas I was stretched out in the lazarette attending to a little detail that I wanted to tidy up.  A wire going to the starboard courtesy light was wound around a hydraulic line.  It didn’t bother anything, but without much effort it could be untangled and everything would look much neater.  I had to get my 2XL self into the far corner and reach up under the new stainless steel exhaust elbow to begin.  My sleeve got a little wet; that didn’t seem right.  A little drip seemed to be forming on the underside of the exhaust elbow and one of the welds was not perfectly smooth.  There was a rusty little spot on one of the new ribs that hold the water tank platform.

I didn’t relish the unanticipated job of removing the elbow.  The exhaust hoses are short and stiff and not very forgiving or flexible.   So everything got put on hold until the New Year arrived.  The starboard exhaust elbow came off  easier than expected, but when the exhaust elbow gets removed all the water that is in the muffler spills into the bilge……and I had it so dang clean, too.   Just so you know:  a muffler that looks like it might hold 5 gallons of water spills about 10 gallons of water into the bilge.  Trust me.

National Marine Exhaust was excellent.  Scott built the elbow about 18 months ago.  He polished the weld with a wire wheel and it looked fine, but when he put the torch to it , a big crevasse opened up.  So it got rewelded (extra-beefy) and we added a bonding tab for good measure.

Reinstallation was a joy.  There are not many places to get leverage or to pry against.  But with help from Mark Hanger of Mark’s Marine Repair the elbow finally gave  up and slid into place.  Usually it’s “two steps forward and one step back”; this was probably “one step forward and two steps back”.  But it emphasizes the value of doing business with good local folks who treat ya right, long after the check has cleared.

B Dock, Velkommen

Water Tank Project – Phase 5……progress report

Comments Off 15 August 2011

It’s been far too long since I’ve posted on Velkommen’s lengthy water tank replacement project.  The project grew, like most boat projects, to be much larger than first imagined.  Better to get it right than do it twice.

We are looking forward at the port-side space between the hull and the aft deck, approx. 9′ x 9′ x 2′.  The third coat of primer is dry and ready to be painted over.  On the left is the muffler, temporarily supported by a 1″ x 4″.  The black hoses are for the hydraulic steering and coolant routed through the Hurricane Heater.  The lines coming out of the hole in the engine room bulkhead run to the remote Sea Freeze compressor mounted high and center on a shelf bent from 1/4″ aluminum plate.  It is partly visible on the right edge.  Adjacent to the compressor, also partly visible, is the one of the new SS exhaust elbows.  The replacement of this particular elbow began the renovations and alterations that you see.

All images enlarge with a click.

The second pic shows the first fitting of the Hurricane heater platform and the battery platform.  The starboard side is actually farther along; the painting is complete and the water tank platform and the battery platform have been installed.  Besides the battery cables, the water tank fill hoses are wrapped around the red bucket, and then there is the green bonding wire,  held up out of the paint by vise grip clamps.

Pic number three shows the first coat of Kirby’s #25 Light Gray gloss coat while it is still nice and fresh.  Three coats of primer and three coats of gloss.  That’s the treatment.  Thankfully, Kirby’s paint does not require special application proceedures. In this case a 4″ nappy-headed roller works pretty well.

No, I’m not going to paint the overhead.  Sure, it would be a nice touch, but enough is enough.  I’m looking toward ending this project not augmenting it.

BIG Thanks to Ray Robinson (Robinson Woodworking) and Mark Hanger (Mark’s Marine Repair) whose encouragement and advise have been invaluable.  And also to Travis Hanson (Hanson’s Marine Services) who matched the gelcoat around the locker doors.


Water Tank Replacement and a Few Other Things – Phase 3

No Comments 23 June 2010

Port-side TanksThe four new tanks arrived a few days ago from Ronco Plastics.  And what a pleasure doing business with them.  The turnaround time was less then ten days; everything arrived in perfect condition and just as spec’d.  I’m using two of their 30 gallon B-189 tanks at each side, a total of 120 gallons, a 36 gallon increase.  Nice!  These tanks will be mounted back-to-back as shown in the thumbnail and plumbed together.  They will live below decks in the approximate location shown, their centerline being  just outboard of the outboard stringer.  Replacing the exhaust elbows allowed the mufflers to be repositioned as far outboard as possible, so the tanks can be about an inch from the mufflers.  These tanks will weigh 500 lbs. per side when full.  Comparing with a centrally located tank with a full weight of 700 lbs, the new arrangement should have higher moment of inertia.  Meaning that side to side rolling behavior should be minimized.  It’s an interesting theory.  As soon as a few more pieces to the puzzle are complete we’ll get the seat-of-the-pants test.


Water Tank Replacement and a Few Other Things – Phase 1

No Comments 15 May 2010

Click on a thumbnail for a larger pic.
Click on a thumbnail for a larger pic.

Water tank pieces.

This project has been on the back burner for quite awhile.  When we bought the boat there was a little water in the lazarette, not enough to be a problem, just annoying.  A large local boatyard replaced the mufflers claiming that a clamp had been overtightened, cracking the fiberglass glasspack.  All of their work was quite nice and quite expensive, and much of it has had to be redone.  I suspect one of the fiberglass exhaust elbows has deformed with heat and is letting a little water excape.  As soon as I get the area cleaned up I’ll have access to all the corners and be able to fix the problem properly. 

The introductory paragraph leads to the water tank.  The original tank was supposed to be 100 gallons (actually it was 84) and it sat atop the stringers in the center of the lazarette.  It was mounted well and worked just fine, but it was too big to crawl around and it was too big to come out of the hatch.  Consequently, access to the Hurricane heater, remote compressor for the Sea Freeze refrigerator, the Magnum Industries inverter and, of course, the exhaust system was was way more difficult than it should be.  Plus, alot of good storage space was going to waste.  So I drained the water tank and grabbed the DeWalt sawsall and the first thumbnail shows the result. 

lazarette_tnDang, there is alot of space down there if I can just rearrange things a bit.  The hatch opening I have to work with is 26.5″ wide by 27.5″ long and it’s 15″ deep to the top of the striingers. The space between the stringers is 16.5″ wide by 8″ deep. It will be nice to get the area shipshape and user friendy. 

Hold on….I just took a day to do some cleaning and inspection of the area.  It looks like the through-hull transducer could have lost it’s seal and is leaking.  The transducer is located just forward of the gray starboard battery tray and below and aft of the Magnum Energy inverter.  I cleaned up the area and have now stuffed dry paper towers around it.  We’ll see if they get wet.

To be continued…………

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