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MARINE ENGINE & PROPULSION SYSTEMS
(Contains extracts & edits of material courtesy of A.N.T.A.  publications, GM, Cummins, update version Ranger Hope © 2008,) Section 1: Principles of Diesel Engines
1.1 Common terminology    
1.2 Operating principles of engines           
1.3 Combustion chambers 
1.4 Valve timing       
1.5 Timing a fuel injection pump     
1.6 Turbo charging   
1.7 After coolers (Charge air coolers)       
Section 2: Fuel Supply, Injection and Control  
2.1 Fuel system for an in line pump           
2.2 Jerk type fuel injection pump    
Cummins pressure time fuel injection pump         
Detroit diesel mechanical unit fuel injection system          2.3 Fuel injectors                  
2.4 Injector operation           
2.5 Rectifying injector faults
2.6 Exhaust emissions        
2.7 Governors                       
2.8 Testing and setting a mechanical variable speed governor  Section 3: Fuel Storage and Handling Systems       
3.1 Survey requirements for fuel storage tanks    
3.2 Fuel storage and handling        
3.3 Shut down devices        
3.4 Causes of fuel contamination   
3.5 Gas Free Situations      
3.6 Flash point          
Section 4: Lubricating Oil Systems  
4.1 Engine Lubricating System Components       
4.2 Lubrication of a marine diesel engine 
4.3 Additives in lubricating oil         
4.4 Contamination   
4.5 Lubricating oil analysis 
4.6 Engine oil changes        
4.7 Faults in a lubricating oil system          
Section 5: Cooling Systems    
5.1 Fresh water cooling systems   
5.2 Pumps    
5.3 Faults in the cooling system     
5.4 Maintenance procedures          
5.5 Setting a high temperature alarm        
 
Section 6: Operating a Marine Engine     
6.1 Starting Methods           
6.2 Precautions with air start engines       
6.3 Engine protection devices        
6.4 Start up, operation and shut down       
6.5 Identifying causes for defects   
6.6 Engine room log book  
6.7 Preventative maintenance schedule   
6.8 Safety aspects when working on engines      
Section 7: Gears, Transmissions and Propulsion Devices       7.1 Relevant sections of the USL Code    
7.2 Components forming the transmission system           7.3 Methods of propulsion reversal
7.4 Stern tube assembly     
7.5 Propeller action 
7.6 Methods of attaching propellers          
7.7 Methods of alignment    
7.8 Maintenance procedures          
 
 
 
 
 
 

Principles of Diesel Engines
 
1.1 Common terminology
Before beginning this module, let’s look at some terms relating to internal combustion: Force| is the influence which tends to change the motion or direction of a body at rest or in motion. A simple explanation is pushing or pulling.From the above, applying a force would either:      Start moving a body from rest or bring a moving body to rest.      Increase or decrease the speed of a moving body.      Change the direction of motion of a moving body.Force is measured in newtons (N). | Work| is the use of energy to overcome resistance. The amount of work done is from moving an applied force through a distance. The unit of measurement of doing work is the joule.The force is measured in newtons (N) and the distance is measured in metres (m). From the formula Work = Force x Distance, work would be in newton metres (Nm). To prevent confusion between ‘work’ and ‘torque’, the unit given to the formula for work is the joule (j).One newton metre = one joule.| Torque| is when a force tends to cause a movement about a point. Torque is also called a turning or twisting effort. Torque = Force x Distance. Torque is the force exerted, but notmoved, over a distance.Force is measured in newtons (N) and distance is measured in metres (m). Torque is therefore measured in newtonmetres (Nm).As an example, the force on the piston of an engine exerts a turning moment on the crankshaft. | Power| is the amount of work done or energy expanded in a given...
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