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low exhaust back pressure air in the fuel system gasket blow –by or leakage incorrect assembly of idler springs
low exhaust back pressure high lube oil temperature insufficient cranking speed excessive fuel atomization
bearing pressure in a four-stroke\cycle acting single diesel engine is continuallyreversed bearing pressure in a two-stroke\cycle single acting diesel engine is continuallyreversed the maximum bearing pressure is higher in a single acting two-stroke/cycle dieselengine two-stoke/cycle diesel engines require more complicated lubrication piping
check the air filter for obstruction check for an exhaust leak check the exhaust temperature secure the engine
the engine is overloaded the engine is cold there is too much lube oil in the cylinders the turbocharger is fouled
an increased flash point higher lube oil pressures an increased viscosity lower lube oil pressures
maintain higher than normal jacket water temperature change the lube oil more frequently than normal maintain a higher air-box temperature than normal maintain a higher air-box pressure than normal
increase decrease remain the same increase on compression decrease on expansion
engine overload low combustion temperature plugged fuel nozzle holes excessive compression pressure
space limitations prevent separately run pipes the engines are small auxiliary units they are arranged to prevent gas backflow to each engine a waste heat boiler is installed
manoeuvring operations bad combustion cooling mooring trial
increasing the volume of intake air shutting off the fuel supply increasing the engine back pressure over-speeding the engine
most critical in a four-stroke cycle diesel engine most critical in a two-stroke/cycle diesel engine most critical in a four-stroke/cycle diesel engine if it is turbocharged of equal importance in a two-stroke/cycle diesel engine as in a four-stroke/cyclediesel engine
the main engines the auxiliary engines the emergency generator engine the auxiliary engines and the main engine(s)
a glazed surface on the spring nicks in the protective coating a build up of sludge deposits cracks in the surface of the spring
Full power cannot be developed The exhaust will contain black smoke Complete combustion will be impossible All of the above
cavitation erosion in the water jackets excess corrosion inhibitor in the coolant dirty jacket water cooler defective turbocharger
counterbalance the crank throws on the crankshaft keep the engine running smoothly between power stroke provide a belt-driving surface for the operation of auxiliary machinery prevent the engine from overspeeding
air binding of the engine cooling system a cracked water cooled exhaust manifold blockage in the heat exchanger faulty operation of the thermostat
later and close sooner sooner and close later sooner and close sooner later and close later
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