Boat Maintenance

Given the number of Mercedes diesels you see on the highway, its amazingly difficult to find parts for the marinized versions of these engines. Part of the difficulty is the origin of the marine versions of the various Mercedes engines. Mercedes, like several other engine manufacturers, doesn't make marine diesels. They do, however, license other companies to do marine conversions using their engine blocks.

The best way to treat an iron keel that’s rusting is to sandblast the whole thing and apply a complete, new, epoxy-based coating system. But that’s not always feasible or desirable. Because of the mess involved, many boat yards do not allow sandblasting. Even when this is permissable, a complete recoating job also means a complete re-fairing job, and that in turn means lots and lots and lots of slow, boring, dirty work if anything approaching a proper, smooth foil is to be achieved.

A snug-fitting teak grating adds safety and a touch of class to the cockpit of any boat. Spray or rain runs under the grating to the cockpit drains, leaving a reasonably dry footing for hopping about the cockpit as you haul in sheets to tack or trim sails. Unfortunately, you can't buy a grating off the shelf to fit your boat, and having a grating custom-built can be a costly and nerve-wracking experience. The solution to both of these problems: build your own grating. Its a fun job that can keep you busy for a few winter evenings, and you can build it for less than one-third the cost of a custom-built job.

Among the more neglected pieces of gear aboard most boats are the primary storage batteries, which faithfully crank the engine and light the lights. In the case of the typical lead-acid battery, even benign neglect is tantamount to abuse. It’s small wonder that many battery manufacturers refuse to recognize the warranty on batteries used aboard boats. The normal marine battery cycling - relatively high discharge rates with no charging, followed by rapid charging at a high rate by high-output alternators - is murder on conventional automotive batteries, and not exactly a piece of cake even for deep cycle batteries, constructed to absorb this type of abuse.

If the weather this time of the year is cold enough for you to give up sailing for a few months and curl up in a warm place, there’s a good chance that the electronic equipment on your boat would appreciate a little of the same treatment. A little extra care when the weather is cold can add considerably to the useful life of most electronics. Unless a piece of gear is totally sealed against the environment, the atmosphere on the inside of the unit will be pretty much the same as the atmosphere on the inside of the rest of the boat. In the middle of winter, this can mean a lot of cold and condensation. Needless to say, condensation on the inside of your delicate electronics is not the best atmosphere for long life.

If the weather this time of the year is cold enough for you to give up sailing for a few months and curl up in a warm place, there’s a good chance that the electronic equipment on your boat would appreciate a little of the same treatment. A little extra care when the weather is cold can add considerably to the useful life of most electronics. Unless a piece of gear is totally sealed against the environment, the atmosphere on the inside of the unit will be pretty much the same as the atmosphere on the inside of the rest of the boat. In the middle of winter, this can mean a lot of cold and condensation. Needless to say, condensation on the inside of your delicate electronics is not the best atmosphere for long life.

Avon is offering a new 10-year warranty on their line of inflatable boats. “We’ve had less than 1% return on our former warranty for defects and deterioration of material” states Avon West’s General Manager, Dave Geoffrey, “that’s why we feel confident in extending the warranty to 10 years.”

The battery is the heart of a boat’s 12-volt electrical system. In it, a chemical reaction maintains a potential difference or voltage, which “pumps” or pushes electrons around whichever circuits are switched on or are “closed.” No charges should flow through an “open” or incomplete circuit; if they do, you’ve got a problem, which we’ll get to later. The storage battery’s chemical reaction is reversible, which means that it can be recharged, and will be continuously, as long as the engine is running and the alternator or generator is functioning properly.

The battery is the heart of a boat’s 12-volt electrical system. In it, a chemical reaction maintains a potential difference or voltage, which “pumps” or pushes electrons around whichever circuits are switched on or are “closed.” No charges should flow through an “open” or incomplete circuit; if they do, you’ve got a problem, which we’ll get to later. The storage battery’s chemical reaction is reversible, which means that it can be recharged, and will be continuously, as long as the engine is running and the alternator or generator is functioning properly.

I’m the happy owner of a 31-foot sloop, a replica of a 100-year-old wooden Friendship. Her fiberglass hull was laid up in a mold made from the old boat. My boat is very traditional, with wooden mast and spars, and lots of heavy bronze hardware on her gaff rig. The mast and spars all need to be stripped and refinished this off-season, and the owner of the yard where she’s stored has recommended using Mas epoxy (www.masepoxies.com) as the base, then a coat of varnish, then a sprayed-on clear coat. The Mas people advised not to use an oil or mineral-based spar varnish, as it isn’t compatible with their product.