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Old 01-30-2017, 09:20 PM
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Reading Diesel Technolgy document provided by user Doug Huffman

A couple places suggest that oil puddles at at oil turbo intake may lead to over-revving condition (diesel engine runaway).

Page 43
Quote:
When making repairs which concern malfunctions of the crankcase ventilation system. Or, if any repairs are made to a turbocharger which has leaked oil into the engine, be sure to remove any residual oil in the intake air system.

Failure to do so may result in an engine over-rev situation causing irreparable engine damage. In this case, the warranty may be affected.
Page 93
Quote:
The throttle valve also serves the additional function of effectively preventing over-revving of the engine. If the DDE detects over-revving without an increase in the injection volume, the throttle valve will close in order to limit the engine speed. This situation can occur as the result of combustible substances
entering the combustion chamber. Substances may be engine oil from an exhaust turbocharger with bearing damage.
yes, throttle body valve essentially prevents runaway should it occur, but nevertheless.

In my case, there was a puddle of blowby oil sitting right before turbo blades.
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