Exchanger Kits

Written by Dina Kayed
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There are three ways to cool a marine engine. It is possible to simply use sea water, but this method is not advisable because sea water is extremely corrosive and will ruin your engine in no time. A second method is keel cooling. This method can only be used for very small boats in shallow water, and will not be sufficient to cool a large marine engine.

Marine Heat Exchangers

The third, and probably most effective method of cooling a marine engine, is using a heat exchanger kit. This method is also known as fresh water cooling. It uses temperature-controlled water to cool the engine, using a system of tubes to carry the water to and from the engine. When the temperature remains constant, the metal won't cool too fast and therefore contribute to corrosion, as is the case when using raw sea water.

Heat exchangers are usually self venting. This means that the sea water flows away from the engine. This method has a high cooling capacity and keeps the engine cool even at top speed.

A good marine heat exchanger should be easy to install. It is possible to put it together using simple hand tools you probably already have. Most exchangers come with complete instructions. All you need to do is read them carefully and you should be able to get the job done in a couple of hours.


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