cam cover blowby flow and crankcase pressure, tiny hole modification
#42
Interesting topic. Makes sense to some of my problems. I see VC mods in my future.
Just a note. The scrubber idea may not pan out well. Oil will wick up into whater you put in place. Think of the old oil bath air cleaners. Screen mesh with oil in a pan at the bottom. Hard turns in the path are most common way to drop oil out. also notice a small lip at the turn as well to "catch" the oil from streaming back into the airflow.
Just a note. The scrubber idea may not pan out well. Oil will wick up into whater you put in place. Think of the old oil bath air cleaners. Screen mesh with oil in a pan at the bottom. Hard turns in the path are most common way to drop oil out. also notice a small lip at the turn as well to "catch" the oil from streaming back into the airflow.
#43
I still wish one of you would try a different valve cover. I tapped the PCV port on my cover and used the factory one on the left rear passenger side. (square cover form escort or protege) I know this is the trouble area, but if the baffling is different, then maybe it is a solution. I just drained my contents, I had a very small amount of brown frothy/foam (I assume oil), and a budweiser color mixture that is currently separating. I assume water and fuel. Again, this is street driving only, but the collection has occurred during a lot of closed-loop boost tuning 19psi.
Someone humor me.
Someone humor me.
#44
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I still wish one of you would try a different valve cover. I tapped the PCV port on my cover and used the factory one on the left rear passenger side. (square cover form escort or protege) I know this is the trouble area, but if the baffling is different, then maybe it is a solution. I just drained my contents, I had a very small amount of brown frothy/foam (I assume oil), and a budweiser color mixture that is currently separating. I assume water and fuel. Again, this is street driving only, but the collection has occurred during a lot of closed-loop boost tuning 19psi.
Someone humor me.
Someone humor me.
??? What are you saying? That the escort/protoge cover is better? me no comprendo
#46
I want someone that runs on the track to confirm my hypothesis.
Frothy oil, I separated it by swirling it around in the glass.
I think this is pure fuel. Probably from idling so rich while the car warms up in winter. 11.5 AFR, but that's where it likes it. After warmup it idles at 14-14.5
I tried to ignite the mixture that I thought was gas (it didn't smell enough like gas, so I was curious). I think it might be coolant, which might suggest a small head gasket leak. I'll run some stop leak through the coolant to see if it makes a difference. I'm not in the mood to pull the head any time soon.
Last edited by miatauser884; 02-06-2011 at 11:49 AM.
#49
Not sure. Oil is free of water, so it had to be that the head gasket wasn't seated properly and a little coolant was getting directly into cylinder. I never had any white smoke out of the tail pipe, so it could not a have been much. Either that or the water passage in the throttle body was somehow compromised and letting coolant into the intake track. Then again, maybe it was just moisture condensing int he tubes going to the catch can. That actually makes a little more sense.
The initial fluid in my reservoir smelled somewhat like fuel, but it didn't separate into water and fuel, then, when I tried to ignite it nothing happened. I would expect fuel to burn.
I will leave my tried an true method for fixing the problem to myself so that I don't have to hear the "your stupid" comments. My catch can is empty. yay! Since my catch can, I am not having oil blow out my CAS seal.
The initial fluid in my reservoir smelled somewhat like fuel, but it didn't separate into water and fuel, then, when I tried to ignite it nothing happened. I would expect fuel to burn.
I will leave my tried an true method for fixing the problem to myself so that I don't have to hear the "your stupid" comments. My catch can is empty. yay! Since my catch can, I am not having oil blow out my CAS seal.
#54
That’s good to hear, im assuming I wont have a problem with my protégé one then either. The only difference I can tell just by a google search is that the 323 gtx ones have a little nipple or barb sticking out for what I assume is to go to the intake mani. Mines just a hole (see above post)
#55
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I did this mod too.
I reamed the ever livign **** out of the tiny hole and made it as big as ******* possible.
Then I put two -12 bungs on VC and routed them to my slashcut in exhaust. Catchcan is for the lame.
I reamed the ever livign **** out of the tiny hole and made it as big as ******* possible.
Then I put two -12 bungs on VC and routed them to my slashcut in exhaust. Catchcan is for the lame.
#56
That’s good to hear, im assuming I wont have a problem with my protégé one then either. The only difference I can tell just by a google search is that the 323 gtx ones have a little nipple or barb sticking out for what I assume is to go to the intake mani. Mines just a hole (see above post)
#59
Thread Necro.
I just wanted to add my information here as it's similar in issue.
I've been running a good amount of boost through the stock MSM PCV system. I have been having massive issues with what I thought was rear main seals going bad. I've changed them out 2 times in the past 6 months.
Then I plugged a boost gauge in a spare oil fil cap and realized I was running 3psi of "boost" in my crank case.
Following Jason's lead, this is what I did.
.400" drill size then cleaned up with carbide bit.
I actually made a small second hole to add just a little more flow. I'd rather deal w/oil in the catch can than oil blowing out my rear main seal and making a big *** mess in my bell housing and everything underneath and behind it.
Pulled stock fitting out with twist, pull, hammer.
Drilled larger for 1/2" fitting that I'm going to JB weld in tomorrow.
I'll make a new thread or update this one with what I find.
I just wanted to add my information here as it's similar in issue.
I've been running a good amount of boost through the stock MSM PCV system. I have been having massive issues with what I thought was rear main seals going bad. I've changed them out 2 times in the past 6 months.
Then I plugged a boost gauge in a spare oil fil cap and realized I was running 3psi of "boost" in my crank case.
Following Jason's lead, this is what I did.
.400" drill size then cleaned up with carbide bit.
I actually made a small second hole to add just a little more flow. I'd rather deal w/oil in the catch can than oil blowing out my rear main seal and making a big *** mess in my bell housing and everything underneath and behind it.
Pulled stock fitting out with twist, pull, hammer.
Drilled larger for 1/2" fitting that I'm going to JB weld in tomorrow.
I'll make a new thread or update this one with what I find.