Author Topic: The mess under the intake  (Read 331021 times)

D. Clay

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And so expensive!
« Reply #30 on: May 14, 2007, 07:44:00 PM »
Quote from: Alpine003;25717
Or if you wanna go for the bling: http://cgi.ebay.com/ebaymotors/Oil-Reservoir-Catch-Can-Tank-Mustang-GT-Probe-ZX2-SILVR_W0QQitemZ280113147994QQihZ018QQcategoryZ6778QQrdZ1QQcmdZViewItem
Gotta have the bling-bling!
I've had Hondas that took in air and had a metering jet into the intake. I also had Volvo 240 with a "Spark Arrester" instead of a PCV valve. It clogged up and blew out all the seals. It looks like in tjts1's pics that there may some serious blow by going on. Hope I'm wrong.
« Last Edit: May 14, 2007, 07:49:39 PM by D. Clay »

tjts1

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The mess under the intake
« Reply #31 on: May 14, 2007, 11:28:01 PM »
The 240 actually has very little blow by or oil burn off. It consumes about 1 quart in 7k miles. The flame trap mechanism is pathetic on those cars. But everything that gets by the flame trap tends to stick to the TB and intake. After 100k miles it turns into a horrible mess and starts to restrict air flow. Thats the last thing you want on the low power B230.
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1991 E30 M42

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The mess under the intake
« Reply #32 on: May 15, 2007, 07:19:01 AM »
Quote from: gearheadE30;25448
Holy crap that's a lot of sludge! Where does all that oil come from?



Maybe the the  crank case vent that goes into the bottom of the throttle body.

kowalski

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The mess under the intake
« Reply #33 on: May 15, 2007, 08:04:43 AM »
Quote from: romkasponka;25699
yes, but I cant understand your mind :)


hahaha, k ill explain myself. If you start your engine, and take off the oil cap it runs rough because its venting air. If you vent the valve cover into the open air it would have the same effect would it not? or is it because that vacume line is linked to the intake that having the oil cap off causes it to run rough simulating a vacume leak? Basically what i'm getting at is does this oil catch can that you'v got there simulate a crank case leak due to an open line?
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tjts1

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The mess under the intake
« Reply #34 on: May 15, 2007, 10:35:59 AM »
Both ends of the oil catch can are are connected to a closed system. One end of the catch can is connected to the valve cover, the other is connected to the intake tube. The gases coming out of the valve cover to the catch are inert. There is no oxygen. If there are no vacuum leaks, the gases coming out of the valve cover are a combination of oil fumes, inert blow by gases that got around the piston rings and a little bit of moisture.
Quote from: kowalski;25758
or is it because that vacume line is linked to the intake that having the oil cap off causes it to run rough simulating a vacume leak?
Yes!
« Last Edit: May 15, 2007, 10:43:15 AM by tjts1 »
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romkasponka

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The mess under the intake
« Reply #35 on: May 15, 2007, 11:35:34 AM »
Quote from: kowalski;25758
hahaha, k ill explain myself. If you start your engine, and take off the oil cap it runs rough because its venting air. If you vent the valve cover into the open air it would have the same effect would it not? or is it because that vacume line is linked to the intake that having the oil cap off causes it to run rough simulating a vacume leak? Basically what i'm getting at is does this oil catch can that you'v got there simulate a crank case leak due to an open line?


I instaled plug where it is connected to the intake and there is no leak.
E30 318is M42
E36 318is M44

kowalski

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The mess under the intake
« Reply #36 on: May 15, 2007, 12:26:22 PM »
perfect, i understand now:)

so technically there should be some sort of performance gain by removing these non usable gases out of the system... however small they may be.
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tjts1

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The mess under the intake
« Reply #37 on: May 15, 2007, 12:47:32 PM »
I suppose on an all out track car I would allow the crankcase to vent directly to the atmosphere but on a street car you will get a whiff of some very nasty carcinogenic odors every time you are sitting at a light. Some motorcycles and track cars actually vent the crankcase into the exhaust through a one way valve. The gases rushing through the exhaust can create a bit of a vacuum in the crankcase which can free up a few HP. Venting the crankcase at the mouth of the TB does the same thing to a lesser extent. I personally wouldn't vent the crankcase to the atmosphere but thats just me. The performance gain is simple too small. Keep in mind that this is also very illegal. Connecting the crankcase to the intake was one of the first emissions devices conceived back in the 50s.
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kowalski

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The mess under the intake
« Reply #38 on: May 15, 2007, 03:10:10 PM »
the exhaust idea is good so it vents into the cat.
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dlmrun2002

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Damn hoses
« Reply #39 on: May 15, 2007, 08:34:30 PM »
I feel your pain.  I just did a new engine install and replaced every coolant hose.  Plus heater hoses  and some vac lines.  200 miles later I see a very small  anti freeze leak  running down the passenger side of tranny. Just a few drops. Oil cap  is not cloudy. Hopefully  I"ll  find a loose hose-- pleeeeeze
DLM
« Last Edit: June 19, 2007, 06:49:37 PM by dlmrun2002 »

zav3n

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ahh mann
« Reply #40 on: May 17, 2007, 09:30:12 PM »
Quote from: christophbmw;25557
replace that plastic coolant junction piece now while you can! they are really chea from the dealer.....and dont forget the o-ring that goes with it.;)


all i can say is wow i should have listened to you!!!!....  plus BMA and the dealship were closed by the time i found out and i need my car tomorrow LMAO..




oldtimer

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The mess under the intake
« Reply #41 on: May 17, 2007, 10:00:29 PM »
Sorry this photos are late.  I said I will take some photos to show you just how clean the "white gas" can get the engine bay clean.  Remember oil acts like a bounding solution when dirty like sand and dust clings to it.  The white gas defuses pertrolium base substance hence when you spray white in that area it will dis-bond the dirt then all you have to do is spray it with air blow off any sand or dirt that use to be glued together by the oil.


By the way all this new way to catch the extra moisture from the crankcase, isn't that the same when you use the water seperator for your air compressor.  If so once in awhile you'll need to drain the water that was collected.  For a daily drive that's a lot of work without any major power gain, much like the COP mod a lot of machining and fabricating but no performance gain.

dude8383

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The mess under the intake
« Reply #42 on: May 20, 2007, 06:31:41 PM »
Quote from: zav3n;25997
all i can say is wow i should have listened to you!!!!....  plus BMA and the dealship were closed by the time i found out and i need my car tomorrow LMAO..





What is the part number for this piece?!

I've been trying to figure it out, but the diagram on realoem doesn't give it a number!


zav3n

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The mess under the intake
« Reply #43 on: May 20, 2007, 08:16:58 PM »
omg i had the hardest time trying to figure this out... pacific BMW acually quoted me 297 dollars and then when i ask for the part number they hung up on me then i ask bma and they got the part right away. and while i was trying to figure it out christophbmw sent me a pm w/ the pn but i checked it to late lol...

hope this helps.!

water pipe : 11 53 1 714 738
o-ring        : 11 53 1 709 157



here are some pics of my new set up without the mess.

tjts1

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The mess under the intake
« Reply #44 on: May 20, 2007, 08:34:10 PM »
Looks like you mounted the ICV above the vac hose to the brakes booster. I have it below. I think I'll re route mine to look more like urs but  I was afraid the wiring to the ICV was too short. I put about 100 miles on mine since dropping all that garbage and so far so good. I have my fingers crossed that that plastic pipe doesn't leave me on the side of the road before I replace it. My engine also needs a big dose of cleaning.
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