KIT-ENGINE GASKET 4391515 - Caterpillar

A wide range of exhaust components are available for all types of exhaust systems. This allows complex systems to be built. There are several different ways to connect the exhaust system.
The exhaust system back pressure must not exceed 10.2 kPa (40 inch of H2O) when measured within 305 mm (12 inch) of the exhaust outlet from the engine. This includes wet exhaust systems, dry exhaust systems, part dry part wet exhaust systems, and water lift exhaust systems.It is important that the exhaust system is designed so that water does not enter the engine under any condition. Serious engine damage can occur.
Wet Exhaust System
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Typical wet exhaust system installation (1) 5 degree minimum average slope (2) Exhaust piping (3) Centerline of the crankshaft (4) The point of water injection should be a minimum of 200 mm (8 inch) above the level of the sea water. (5) Level of the sea water (6) Marine engine
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Exhaust elbow that is water injected for the naturally aspirated 3034 Marine engine (7) Connection for temperature or pressure measurements (8) Water feed connection
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Typical exhaust elbow that is water injected for the turbocharged 3034 Marine engine (9) Connection for temperature or pressure measurements (10) Water feed connectionWet exhaust systems are the most common type of exhaust system for small vessels. Wet exhaust systems use the sea water that is used for the cooling system. The sea water is injected into the exhaust piping in order to cool the exhaust gases. The sea water and the exhaust gases are then exited from the vessel. Rubber exhaust hose may be used. This is due to low surface temperature.Illustration 1 represents a typical installation of a wet exhaust system. In most cases, the exhaust outlet will exit just above the level of the sea water. A minimum of 5 degrees slope is required. The point of water injection must be at least 200 mm (8 inch) above the level of the sea water. The actual height will depend on the type of service.The diameter of the exhaust piping (2) for a wet exhaust system is 63.5 mm (2.50 inch) for the naturally aspirated 3034 Marine engine. The diameter of the exhaust piping (2) for a wet exhaust system is 76 mm (3 inch) for the turbocharged 3034 Marine engine.
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Typical arrangement for an exhaust bellows joint with a double hump (7) When there is restricted space, use an exhaust bellows joint with a double hump. (8) Engine (9) Marine transmissionConsideration must be given to flexibility in the exhaust piping. This is true especially if the engine is mounted with flexible engine mounts. If the exhaust piping must pass through a bulkhead that is immediately behind the engine, an exhaust bellows joint with a double hump should be installed. This will provide flexibility. The exhaust bellows joint should not be compressed after final installation.Dry Exhaust System
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Typical