Turbochargers

Just one second of working without lubrication and the turbocharger can be damaged. With such high speed, friction without any lubricant causes immediate wear of materials.

Due to lack of lubrication, the engine oil pump works improperly, the element which transfers the oil to the engine is blocked or sealing rings for liquids become worn.

A failure can occur due to contaminants in oil, both in the case where it is not replaced on time, and where there are metal chips in the crankcase, which are left after the engine breakdown.

Oil can contain any kind of particulates (coal tar, metal chips and elements of solidified sealing).
In order to avoid the failure, the oil, oil filter, crankcase and oil hoses should be monitored.

Faulty or worn filter, loose hose clamp and even scratched hose can result in sand, dust or salt getting inside. It may also occur that a small foreign body, such as a shim, is left in the turbocharger when replacing the filter.

The failure can be observed where there is power loss or the engine becomes overheated. If these occur, you need to check the filter, hoses and hose clamps.

There is also a possibility of failure in a turbocharger when foreign bodies get inside through the turbine housing outlet.
Such failure occurs when a valve or piston is damaged, or when small solid bodies are chipping off partition walls.
You should control valves, valve seats, pistons and exhaust manifolds and carbonisation in an exhaust manifold.

Excess heat in exhaust gases results in occurrence of cracks and deformation of the turbine housing outlet.
If the engine heats up too much, it loses power and causes an increase of fuel consumption. It is possible that the injection point is moved and obstruction of catalysts and exhaust gases has occurred.
To remove the fault, you should check the injection, air filter, intercooler and hoses.