Marine Heat Exchanger Diagram

The closed cool ing system is similar in function to the rest of the cool ing system in an automobile. The seawater system is similar in function to the fan used in an automobile because it absorbs heat from the closed cooling system as it passes through the heat exchanger.

Steam Consumption Of Heat Exchangers

It uses raw lake or ocean water brought in from the raw water pump to act as coolant for the engines circulating water.

Marine heat exchanger diagram. See figure 5 1 for rubber impeller seawater pump a centrifugal type cooling system components. Orca marine cooling systems has been manufacturing high quality marine heat exchangers and cooling systems since 1973. Mercruiser closed cooling system flow diagram click on image to enlarge.

By routing raw water with its included salt mud marine organisms and debris into the corrosion resistant long lasting heat exchanger system instead of the coolant passages in your engine block there are fewer places for accumulation of deposits and the raw water is never exposed to the high temperatures of the blockwhich can lead to. The heat exchanger is the heart of the closed cooling system. Make sure that the radiator shop has experience with marine heat exchangers.

All about marine salt water cooling systems impeller heat exchanger salt water pump updated. This is a key feature of mercruiser. How much steam and smoke should come out of a marine engine how to take a heat exchanger apart.

Picture of inside heat exchanger the only thing not shown real clearly in the pics rick posted is the typical sectioning used in the raw water side. The tubes are separated usually into three groups so the raw water actually makes three trips thru the hx before heading out to the exhaust. Mercruiser utilized a full flow thermostat housing that direct flow through the heat exchanger or through the bypass circuit at all times.

Not responsible for typographical errors. Our kits include everything needed to convert a raw water cooled engine to a long lasting treated water system which can be easily installed even when a boat is in the water. The coolant recovery system keeps the reservoir full.

The circulating water runs in a closed loop through the engine only in a half system and in a full system the exhaust manifold as well. The jacket waterside can be cleaned in the same way as an automobile cooling system using any of the better radiator cleaning solutions on the market. Section 5 cooling system 51 general the heat exchanger cooling system consists of a heat engine circulating pump a water cooled exhaust exchanger with a coolant recovery tank a thermostat a manifold and an exhaust mixer.

If a less thorough cleaning is desirable the heat exchanger can be left in the system. Some merchandise may be limited in supply or available only by special order. Up until 1992 mercruiser had almost always configured their marine cooling systems.

Marine Heat Exchangers Installation Maintenance Faq Tips Orca