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GO DAWG GO's Avatar
 
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Location: Inland Empire of the left coast
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Question Oil in the Intake Manifold

Every time I take my intercooler off, I notice evidence of oil in the intake system. Some will puddle on the top of the flange on the casted intercooler turbo to IC pipe. Intercooler is damp with oil too. About 6 months ago, I removed the airfilter plenum and replace it with the BMC element and disconnected the Sump vent. Where else in the intake system can oil be introduced. It causes my engine to smoke occasionally. The coupling on the cold air intake side of the turbo had oil in/on in also. So where upstream could it be coming from...?

Any ideas?

Thanks

Bob
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Old 08-13-2007, 08:23 AM
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Sounds like it's coming from the turbo's oil supply somehow.
Old 08-13-2007, 10:50 AM
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Check the plumbing coming from the CIS metering plate all the way down to the turbo inlet. If there's oil in that passage, then you know it's oil vapors being sucked up from the oil tank.
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Dave
'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 08-13-2007, 05:12 PM
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Werk-I,

Thats whats happening...how do you stop it? I dont have to much oil in the motor. Which tubr do you think it might be?

Thanks

Bob
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Old 08-14-2007, 07:32 AM
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Does your car have the oil seperator in the right hand side of the engine compartment? This is yet another mod I want to do...
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1981 UK 930. G50/01 shortened, 964 3.8RS Fibreglass Body Kit, 18" Alloys 8.5" F & 10" R, 225's F & 285's R, Special Colour Metallic Blue Paint, FIA Sparco Evo's, A/C and Air Pump removed, Electronic Boost Controller, GHL Headers, Tial46 WG.
Fitting - New service kit.
Needs Fitting - Innovate XD-16 Kit, Kokeln IC. Stephen's K27 HFS, EVO Intake Assy & his Modded USA Fuel Head.

1983 UK 911 3.2 Carrera Sport Coupe. Black, Black Leather with Red Piping, Black Alloy Gear Knob, K&N Air Filter Element, Turbo Tie rods.
Needs Fitting - K&N CO Sensor, Round A/F Dial Gauge, Factory Short Shift Kit.

http://www.danasoft.com/sig/Iamnotanumber.jpg
Old 08-14-2007, 01:28 PM
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Nathan,

What does it look like? Is there a breather from the sump tank to the intake manifold? I disconnected the one from the aircleaner and installed a small filter on it that came with the BMC Kit.

Thanks

Bob
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Old 08-14-2007, 01:34 PM
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So there's no line from the oil tank to the air cleaner? This would rule out any blowby from the oil tank if the breather lines have been removed.
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Dave
'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 08-14-2007, 01:55 PM
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Here is the seperator.

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1981 UK 930. G50/01 shortened, 964 3.8RS Fibreglass Body Kit, 18" Alloys 8.5" F & 10" R, 225's F & 285's R, Special Colour Metallic Blue Paint, FIA Sparco Evo's, A/C and Air Pump removed, Electronic Boost Controller, GHL Headers, Tial46 WG.
Fitting - New service kit.
Needs Fitting - Innovate XD-16 Kit, Kokeln IC. Stephen's K27 HFS, EVO Intake Assy & his Modded USA Fuel Head.

1983 UK 911 3.2 Carrera Sport Coupe. Black, Black Leather with Red Piping, Black Alloy Gear Knob, K&N Air Filter Element, Turbo Tie rods.
Needs Fitting - K&N CO Sensor, Round A/F Dial Gauge, Factory Short Shift Kit.

http://www.danasoft.com/sig/Iamnotanumber.jpg
Old 08-14-2007, 02:43 PM
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