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Turbo kkk leaking oil on 930

Hello everybody
I have since a long time a problem’with my 930 very difficult to understand , my
turbo is leaking oil, we have changing all the parts of the line without sucess.
New turbo kkk, new output line with the container, new pump ...
To fix this problem’we have to clean the little black bottle called separator air-oil located on the right side just against the tube using to fulfill the oil.
On this little black bottle are connectedbthe different breather

I don’t know why we have this problem

Manu thanks for your suggestion

Edouard

Old 12-31-2020, 04:59 AM
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Crotchety Old Bastard
 
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Do you have an aftermarket oil accumulator tank for the turbocharger? If so does that oil tank have a vent? If not replace or modify it with one that has a vent.
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RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds
'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8
Old 12-31-2020, 05:53 AM
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Hello Rarly

All spare parts is oem and the vent is ok
Recently i have a doubt about this separator air-oil.
During is live my 930 have had a new motor 930/66 original replaced by 930/60 and apparently on this motor they don’t have this separator...
On my car this separator exist ...and when the turbo start to leak’oil, i have only to clean this black bottle and this solve the problem.
I don’t understand because this separator is not really dirty..
Old 01-01-2021, 08:24 AM
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Forced Induction Junkie
 
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When you say the turbo is leaking oil, where is it leaking? The oil accumulator catches and recycles the oil vapor coming off the engine oil vent line from the engine breather.
If you have the factory turbocharger sump, there is a screen inside the sump that prevents oil coking particles coming off the turbocharger shaft from getting in the oil tank and then into the engine. It is accessible via the allen head bolt on the bottom of the sump. That screen should be cleaned regularly to allow the turbo sump pump maximum efficiency. Check it out. If it is partially clogged the oil will back up and get sucked into the intake through the shaft seals or vent line.
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'85 930 Factory Special Wishes Flachbau
Werk I Zuffenhausen 3.3l/330BHP Engine with Sonderwunsch Cams, FabSpeed Headers, Kokeln IC, Twin Plugged Electromotive Crankfire, Tial Wastegate(0.8 Bar), K27 Hybrid Turbo, Ruf Twin-tip Muffler, Fikse FM-5's 8&10x17, 8:41 R&P
Old 01-02-2021, 02:59 PM
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aka 'vageen'
 
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When does it leak? When sitting after a drive, when running, or under boost?

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Old 01-04-2021, 05:09 AM
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