MolaKule
Staff member
From Noria - an interesting article on Turbocharger Coking and Reduction of bulk oil Temperatures:
Book Bits
Synthetic Oil Solves Turbocharger Problem
From "The Practical Handbook of Machinery Lubrication":
A construction equipment contractor was experiencing premature turbocharger failures when certain engines were operated under full load conditions and used around the clock. Investigation through oil analysis and diagnosis of the failed components, revealed that the failures were caused by coking of the petroleum base oil within the turbocharger oil passages, thus restricting oil flow and resulting in bearing failure.
The initial cause of the oil coking condition was excessive temperatures within the turbocharger housing. A fully synthetic diesel engine oil was selected of the same viscosity as the original petroleum base mineral oil and installed. Premature turbocharger failures did not reoccur and oil temperatures dropped by about eight degrees Fahrenheit.
Book Bits
Synthetic Oil Solves Turbocharger Problem
From "The Practical Handbook of Machinery Lubrication":
A construction equipment contractor was experiencing premature turbocharger failures when certain engines were operated under full load conditions and used around the clock. Investigation through oil analysis and diagnosis of the failed components, revealed that the failures were caused by coking of the petroleum base oil within the turbocharger oil passages, thus restricting oil flow and resulting in bearing failure.
The initial cause of the oil coking condition was excessive temperatures within the turbocharger housing. A fully synthetic diesel engine oil was selected of the same viscosity as the original petroleum base mineral oil and installed. Premature turbocharger failures did not reoccur and oil temperatures dropped by about eight degrees Fahrenheit.
