Q & A — September 2002
By Capt. Ken Kreisler
Neat & Clean
2: Diesel Fuel Cleaning, Voltage-Drop Test
used a biocide to treat my diesel fuel but still wound up with a plugged
fuel filter. Any suggestions? C.S., via e-mail
Repeatedly changing your fuel filters may eventually solve the problem--at first you may have to perform this kind of maintenance after each outing. However, if the accumulation is large, you have two options: One, have your fuel tanks cleaned with a portable filtering system. You should be able to find a company that does this in the Yellow Pages under "fuel treatment." Once the tank is clean, maintain cleanliness with regular applications of biocide, and keep an eye on your filters for a reoccurrence of the problem.
The other option is to install a fuel-polishing system on your boat that can continuously recirculate and filter your fuel, whether your boat is underway or at the dock. Some polishers rely on ultrafine filters, while others use a centrifuge or coalescer. Several companies manufacture such units, some of which are suitable for boats as small as 40 feet. Among them are Walker Engineering's AlgaeSep (818) 252-7788, www.walkerairsep.com; Belgoes Filtration Systems (866) 235-4637, www.fuelpolishing.com; and the Kaydon Filtration Group's Guardian System (706) 884-3041, www.cleanfuelinc.com. Prices range from about $1,300 to more than $4,000, excluding installation.
is a voltage-drop test? A.V., via e-mail
When performing this type of test, always connect the voltmeter's red lead to the electrical source and the black lead to the electrical load.
help with a maintenance problem? Write to Maintenance Q & A, Power
& Motoryacht, 260 Madison Ave., 8th Fl., New York, NY 10016.
Fax: (917) 256-2282. e-mail: email@example.com. No phone calls,
This article originally appeared in the January 2003 issue of Power & Motoryacht magazine.