Problem Related With Turbocharger
If any problem related with turbocharger, such as lack of engine power, poor acceleration, abnormal engine noise or oil leaks, may occur, check the turbocharger according to the procedure as follows .
- Check for assembling of the turbocharger and the exhaust fitting (or the after treatment).
- Check if a gasket is installed.
- Check if mounting bolts (or nuts) are tightened properly.
- Check if there is a gas leak.
- Check if there is any damage, such as crack, on the parts.
If a gas leak occur as a gasket was not installed or mounting bolts (or nuts) were tightened inadequately, it may cause abnormal engine noise.
If the cause of the problem is detected, retighten the mounting bolts (or nuts) as the specified torque or replace the gasket or damaged parts with new ones if necessary.
- Check for assembling of the turbocharger and the exhaust manifold.
- Check if a gasket is installed.
- Check if the mounting bolts (or nuts) are tightened properly.
- Check if there is a gas leak.
- Check if there is any damage, such as crack, on the parts.
If a gas leak occur as a gasket was not installed or mounting bolts (or nuts) were tightened inadequately, it may cause abnormal engine noise.
If the cause of the problem is detected, retighten the mounting bolts (or nuts) as the specified torque or replace the gasket or damaged parts with new ones if necessary.
- Check for assembling of the exhaust manifold and the cylinder head.
- Check if a gasket is installed.
- Check if the mounting bolts (or nuts) are tightened properly.
- Check if there is a gas leak.
If a gas leak occur as a gasket was not installed or mounting bolts (or nuts) were tightened inadequately, it may cause abnormal engine noise.
If the cause of the problem is detected, retighten the mounting bolts (or nuts) as the specified torque or install a new gasket if necessary.
- Check the turbocharger oil feed pipe & hose and oil drain pipe & hose.
- Check if a gasket is installed.
- Check if the mounting bolts are tightened properly.
- Check if the clamps are positioned in place.
- Check if the oil pipes & hoses are damaged (bent, crushed, torn or cracked).
If a gas leak occur as a gasket was not installed or mounting bolts were tightened inadequately, it may cause oil leaks.
If the oil feed pipe & hose is damaged, engine oil is not supplied sufficiently to the turbocharger then it may damage the turbocharger. If the oil drain pipe & hose is damaged and clogged, engine oil is not drained smoothly then it may cause oil leaks from the turbocharger.
If the cause of the problem is detected, retighten the mounting bolts (or nuts) as the specified torque or replace the gasket or damaged parts with new ones if necessary.
- Check for oil leaks between center housing and compressor housing.
- Check if the mounting bolts are tightened properly.
- Check if there is an oil leak.
If the O-ring (gasket) between the center housing and the compressor housing is damaged, it may cause oil leaks.
If an oil leak is detected, replace the turbocharger with a new one.
- Check the setting marks of the turbocharger actuator rod.
- Check if the actuator rod setting mark (A) is aligned in line.
If the setting marks are not aligned in line, the engine performance is changed by an arbitrary tune-up of the turbocharger after delivery.
If the setting marks are not aligned in line, replace the turbocharger with a new one.
- Check the turbocharger actuator vacuum hoses & pipes.
- Check if the vacuum hose is connected to the actuator properly.
- Check if the vacuum hoses & pipes are damaged (bent, detached or torn).
- Check if there is any damage, such as crack, on the vacuum pipes.
- Check if the vacuum hoses are connected to inlet or outlet of the solenoid valve correctly.
If the vacuum pipes & hoses are damaged or disconnected, the actuator does not work properly then it may cause lack of engine power and poor acceleration.
If the vacuum hoses & pipes are damaged, replace them with new ones.
- Check the turbocharger actuator.
- Vacuum type actuator: Check for movement of the actuator rod when a vacuum of 62.6kPa (470mmHg, 9.08psi) is applied to the actuator.
If the turbocharger actuator is damaged, it may cause lack of engine power and poor acceleration.
If the actuator rod does not move, replace the turbocharger with a new one.
- Check the turbocharger compressor wheel.
- Check if the compressor wheel is damaged (bent or deformed).
- Check if the compressor wheel rotates smoothly.
Example)
If the compressor wheel are damaged, it may cause abnormal noise from the turbocharger and poor acceleration.
If the compressor wheel are damaged or deformed, replace the turbocharger with new ones.
- Check the turbocharger turbine wheel.
- Check if the turbine wheel is damaged.
- Check if the turbine wheel rotates smoothly.
Example)
If the turbine wheel are damaged, it may cause abnormal noise from the turbocharger and poor acceleration.
If the turbine wheel are damaged or deformed, replace the turbocharger with new ones.