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Why a turbo oil leaking



Bester Power Turbochargers are veryreliable: less than 1% of turbos fail due to a manufacturing fault with theturbo itself. 95% of turbo failures are because of problems with oilstarvation, oil contamination or foreign object damage.

 BEFOREYOU FIT A NEW TURBO, FIND OUT WHAT CAUSED THE FIRST UNIT TO FAIL OR YOU RISKTHE REPLACEMENT FAILING TOO.

A properly installed turbo should NOT leakoil. There are, however, instances where oil leaks occur. The most common causes, depending on the location of the leak, are:



Leakage from compressorand turbine seals

Excessively high oil pressure

Inadequate drain, drain is too small, doesnot go continuously downhill,

or the location of the drain inside the oilpan is located in a section that has

oil slung from the crank causing oil toback up in drain tube. Always

place oil drain into oil pan in a locationthat oil from crank is blocked by windage tray.

Improper venting of crankcase pressure.

Excessive crankcase pressure.

Oil drain rotated past the recommended 35°.




Leakage from compressor seal

Excessive pressure across the compressorhousing inlet caused by:

Air filter is too small.

Charge air tubing too small or has too manybends between the air filter

and compressor housing.

Clogged air filter.

Leakage from Turbine seal

Collapsed turbine piston ring from excessiveEGT's.

Turbo tilted back on its axis pastrecommended 15°.

Excessively high oil pressure

Inadequate drain, drain is too small, doesnot go continuously downhill,

or the location of the drain inside the oilpan is located in a section that has

oil slung from the crank causing oil toback up in drain tube. Always

place oil drain into oil pan in a locationthat oil from crank is blocked by windage tray.

Improper venting of crankcase pressure.

Excessive crankcase pressure.

Oil drain rotated past the recommended 35°.




This is one of a series of Turbo Failure Fact Sheets from BESTER POWER Turbo. Safeguard your reputation and your business – make sure you read them all .


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