|Part 2: No Strain, Blade Ruiner, A Clean Exchange, and more.|
No Strain. Cooling problems are in fact one of the most common
causes of genset failure, which is why virtually every manufacturer interviewed
for this article considered maintenance of that system a top priority.
But Nelson Wilner, president of Mase North America, cites a component
not generally considered part of the cooling system as one of the three
most common maladies his service people encounter. He says that even a
slightly clogged sea strainer can reduce the supply of sea water to the
heat exchanger, eventually leading to overheating. Pressman cites potentially
more serious maladies. “Sometimes when a strainer is clogged, it
can’t do its job and will allow material to reach the raw-water impeller,
damaging blades,” he says. “This can cause bits of the rubber
impeller to break off and lodge in the heat exchanger, where they clog
its small passages.” Kohler recommends checking your genset’s
raw-water strainer before every start. Most genset manufacturers urge
you to remove at least one side of the acoustical enclosure every few
months so that you can take a good look at your unit’s condition.
This article originally appeared in the May 2003 issue of Power & Motoryacht magazine.