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spark from a plug in the pre-combustion chamber electrical discharge from the distributor heat of compression within the cylinder heat from the fuel injection nozzle
Baffle plates that have been bent during prior removal Leaks in the cooler tube nest Operating the engine while maintaining a high sea water outlet temperature A punctured sea water strainer supplying cooling water to the heat exchanger
excessive heat insufficient heat effective cooling high output
reduce engine exhaust noise reduce engine back pressure increase engine cycle efficiency increase turbocharger efficiency
prevent engine back pressure at heavy loads increase total engine efficiency at low loads prevent boiler corrosion at low engine loads improve engine fuel consumption at any load
residual carbon deposits lube oil viscosity breakdown uneven heat expansion of the rings uneven heat expansion of the piston
an diesel oil heater a waste heat boiler a fresh water generator all the above
reduce engine exhaust noise reduce engine back pressure recover heat which otherwise would be lost increase turbocharger efficiency
conducted through the engine block conducted to water cooled cylinder walls conducted through the piston crown loss to escaping exhaust gases
Each engine must have its own engine driven cooling water pump capable of providingcooling for all ranges of operation propulsion engines with bores exceeding 200 mm are to be fitted with a means to displaythe cooling water temperature of each cylinder At least two independent sea sucti8ons are to be provided for supplying water to theengine jackets or to the heat exchangers Suitable strain are to be fitted between the circulating pumps and heat exchangerswhen sea water is used for direct cooling
radiated through the engine block transferred to water cooled cylinder walls conducted through the piston crown transferred to escaping exhaust gases
Leaking seal ring Insufficient heat transfer from the exhaust valves Block cooling water passages to the head Excessive scavenging air provided to the engine
the burning the fuel the air charge the engine piston
excessive heat friction oxidation high pressure
reduce electrolytic action on heat exchanger metals keep heat transfer surfaces shiny and clean prevent rapid accumulation of marine growth provide a protective coating on heat exchanger surfaces
prevent piston side thrust prevent engine friction losses transmit heat from the piston to the cylinder liner remove oil from the cylinder combustion space
eliminate hot air from the condenser maintain steady pressure in a system heat, or cool one fluid by means of another fluid reduce the engine room temperature in tropical climates
air binding of the engine cooling system a cracked water cooled exhaust manifold blockage in the heat exchanger faulty operation of the thermostat
turns turned turning being turned
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