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Replacing turbocharger on 1991 740SE 700 1991

posted by  NJC on  Mon Dec 13 07:56 CST 2004
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last visit: Sun Jul 24 13:42 CST 2011
[RELATED]

Have you considered oil being trapped in turbo as per following:

Excerpt:

"PROBLEM AREAS

A common problem with a turbocharger is oil passing by the oil ring seals, leaving a cloud of blue smoke coming from the exhaust. The oil drain inside the unit could be plugged with coke/burnt oil deposits, making the only route for the oil is to dump into the exhaust. Oil must be drained away from the turbo faster than the oil being fed to it. Consider the possibility that excessive oil pressure/volume might be being fed to the turbo, causing the bearing housing to be flooded with oil and the turbo to leak."

http://www.brickboard.com/FAQ/700-900/EngineTurboRebuilding.htm
--
Norm Cook Vancouver BC; 1989 745T 202,000KM






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