Maintenance for Blow By Oil found by Diverter Valves

raannathr333 · 05-19-2008, 11:15 AM

There has been a lot of discussion lately on the blow by oil that goes through the turbo, back into the intake and intercooler....

If you do not have an oil catch can, is there any way to clean this blow by oil out?

I have 27k mi on my e90 335i. After running WOT and coming to a stop my engine will shutter, as if the idle is too low. I'm wondering if the blow by has coated my intake and intercooler and is limiting air flow...

But back to my orginal question, does anyone know of a product or a way to clean this blow by oil out?

thx in advance.

tintivilus · 05-19-2008, 03:14 PM

Pull the intercooler and wash it with solvent? The turbo -> intercooler plumbing should be relatively easy to free as well. The intake side might be trickier.

raannathr333 · 05-27-2008, 08:23 PM

thanks. any other suggestions? Ive read that someone replaced their charge pipe. Im not sure if it was a performance charge pipe (if they exist) but, yeah... anyone know anything else on the matter?

Brandon26pdx · 06-02-2008, 03:49 PM

depends if your engine produces much blow-by. The usual solution is to plug the intake and connect the crankcase breather to a catch can, but this is certainly not emissions legal in CA. It's unlikely this phenomenon is affecting the performance of the car at your milage and age, and I personlly would not tear my car apart because of it at this point.

Robertbog · 06-02-2008, 09:36 PM

I have a performance charge pipe with diverters and an oil catch can. It seems to be working well for the first few hundred miles.

raannathr333 · 07-14-2008, 07:20 PM

who makes the performance charge pipe?

AWD Addict · 07-14-2008, 10:06 PM

Does Samco make them for the e92? They're a good name in silicone charge pipes/hoses.

05-19-2008, 11:15 AM	#1
raannathr333 Second Lieutenant 28 Rep 204 Posts Drives: 20' x40i, 07’ 335i, 11’ M3 Join Date: Sep 2007 Location: SoCal iTrader: (0)	Maintenance for Blow By Oil found by Diverter Valves There has been a lot of discussion lately on the blow by oil that goes through the turbo, back into the intake and intercooler.... If you do not have an oil catch can, is there any way to clean this blow by oil out? I have 27k mi on my e90 335i. After running WOT and coming to a stop my engine will shutter, as if the idle is too low. I'm wondering if the blow by has coated my intake and intercooler and is limiting air flow... But back to my orginal question, does anyone know of a product or a way to clean this blow by oil out? thx in advance.
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05-19-2008, 03:14 PM	#2
tintivilus Lieutenant Colonel 26 Rep 1,826 Posts Drives: E92 335i Join Date: Sep 2006 Location: Lake County, IL iTrader: (0) Garage List 2007 E92 335i [0.00] 2003 325i [0.00]	Pull the intercooler and wash it with solvent? The turbo -> intercooler plumbing should be relatively easy to free as well. The intake side might be trickier.
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05-27-2008, 08:23 PM	#3
raannathr333 Second Lieutenant 28 Rep 204 Posts Drives: 20' x40i, 07’ 335i, 11’ M3 Join Date: Sep 2007 Location: SoCal iTrader: (0)	thanks. any other suggestions? Ive read that someone replaced their charge pipe. Im not sure if it was a performance charge pipe (if they exist) but, yeah... anyone know anything else on the matter?
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06-02-2008, 03:49 PM	#4
Brandon26pdx Lieutenant Colonel 28 Rep 1,938 Posts Drives: 2011 135i Join Date: Oct 2007 Location: Portland, OR iTrader: (1)	depends if your engine produces much blow-by. The usual solution is to plug the intake and connect the crankcase breather to a catch can, but this is certainly not emissions legal in CA. It's unlikely this phenomenon is affecting the performance of the car at your milage and age, and I personlly would not tear my car apart because of it at this point.
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06-02-2008, 09:36 PM	#5
Robertbog Lieutenant 69 Rep 526 Posts Drives: 335i Join Date: Apr 2008 Location: Dallas iTrader: (1)	I have a performance charge pipe with diverters and an oil catch can. It seems to be working well for the first few hundred miles. __________________ Life Lock Identity Security Discount!
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07-14-2008, 07:20 PM	#6
raannathr333 Second Lieutenant 28 Rep 204 Posts Drives: 20' x40i, 07’ 335i, 11’ M3 Join Date: Sep 2007 Location: SoCal iTrader: (0)	who makes the performance charge pipe?
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07-14-2008, 10:06 PM	#7
AWD Addict Chief Executive 300 Rep 2,886 Posts Drives: 2008 335xi 6spd Coupe Join Date: Dec 2007 Location: Boston iTrader: (1) Garage List 2008 335xi [0.00]	Does Samco make them for the e92? They're a good name in silicone charge pipes/hoses.
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