Engine Troubleshooting Quiz

What is a possible cause exhaust gas temperature in all cylinders increases?

• Clogged fuel filter

• Increased charging air temp. due to ineffective air coolers

• Faulty fuel pump

• Incorrect timing of camshaft

What should be checked if the exhaust gas temp. in all cylinders decreases?

• Fuel pump timing advance

• Oil level

• Air filter condition

• Thermostatic valve

What indicates that oil has collected on the piston crown?

• Excessive smoke from exhaust

• Fuel pressure is high

• Engine temperature is too low

• First ignitions are too violent

What is a possible cause when the engine RPM decreases?

• Faulty starting system

• Low oil pressure

• Water in fuel

• Low cooling water

What should be checked if the engine stops unexpectedly?

• Battery charge

• Fuel tank level

• Pressure and temperatures

• Oil viscosity

What could cause smoky exhaust during normal running?

• Worn spark plugs

• Defective fuel valves

• Low coolant level

• Clogged air filter

What is a sign of pump being stopped in the cooling system?

• Rising cooling water temperature

• Unusual noises from engine

• Low oil pressure

• Excessive vibration

What should be done first if the lubricating oil pressure fails?

• Stop the engine

• Check fuel levels

• Inspect air filters

• Increase engine RPM

What is a possible cause of a smoky exhaust?

• Air supply too low

• Worn out bearings

• Faulty ignition timing

• Clogged fuel lines

What should be inspected if the exhaust valve is knocking?

• Oil filter condition

• Fuel pump pressure

• Battery connections

• Adjusting screw for valve setting