Q & A — May 2002
By Capt. Ken Kreisler
| Heat exchanger operation, a cure for deposit buildup, outboard engine maintenance, and more.
boat I bought has an older V-8 stern-drive engine with a closed cooling
system. What do I have to know about this kind of system and, in particular,
how the heat exchanger works? P.L., via e-mail
As far as maintenance is concerned, keep an eye on the raw-water system--especially zincs and exhaust elbows--as it will be susceptible to corrosion from the saltwater. Regularly check hoses and hose clamps, as well as seals and gaskets, for leakage. Inspect your seacock and raw-water pump also.
getting a restricted water flow from our shower due to what looks like
a deposit buildup. What can we do to prevent this? B.G.,
can remove the residue by spraying the shower head with a product such
as Tilex, then scrubbing it with a toothbrush. If the buildup is particularly
heavy, remove the shower head and give it a more thorough cleaning inside
and out with the cleaning product. If you have a chrome shower head, try
soaking it overnight in a plastic bag filled with vinegar. A thorough
cleaning the next day with freshwater should do the trick. If you have
a brass or brass-plated fixture, do not use vinegar on it, as this will
ruin the finish. Keep at it with the Tilex-type cleaning product.
This article originally appeared in the January 2003 issue of Power & Motoryacht magazine.