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Oil Leak from Turbine Seal

posté par Service Kinugawa  sur

Firstly, please check the following 4 points before inspection of the turbocharger.

1. Compressor housing outlet, intercooler circuit, and connections.

2. Turbine Housing inlet, manifold circuit, gasket, and connections.

3. Turbine Housing outlet, dump pipe circuit, gaskets and connections.

4. Compressor housing inlet, air filter clean situation and connections.

kinugawa turbo systems make sure that correct tightening of connections

Waring: The troubleshooting guide may only be conducted with the vehicle in drivable condition. Please stop the trials at signs of engine malfunction such as black smoke, excessive oil consumption, or run-away engine.

Possible Cause


Possible Remedy

Restricted engine crankcase breather


Refer to engine manufacturer's manual, clear restriction

Turbocharger bearing housing sludged or coked


Change engine oil and oil filter, overhaul or replace turbocharger as required

Worn engine piston rings or liners


Refer to engine manufacturer's manual and repair as required

Burnt valves and/or pistons


Refer to engine manufacturer's manual and repair as required

Excessive dirt build up on compressor wheel and/or diffuser vanes


Clean in accordance with details/instructions from Kinugawa Turbo Systems

Turbocharger damaged


Find and correct cause of failure, repair or replace turbocharger as necessary

Restricted turbocharger oil drain line


Remove restriction or replace damaged parts as required


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