Now i'm sure most if not all of you are aware of the issue attaining to the N14 engine, which has the issue of excessive carbon build up on the inlet valves ?

The usual method is to fit an oil catch can or use a cleaning additive such as Seafoam, BG K44 etc etc or maybe both, there has been discussions and I have mentioned this too, about the fitment of water/meth injection to help remove and control the excessive carbon build up.

For a while now I have been testing another solution, and this is to completely remove the rear PCV hose, which feeds the crankcase gas oil mist residue directly into the base of the inlet manifold, which in turn is pulled up into the incoming air flow and finds itself being burnt onto the inlet valves.

So the following photo's show what I have done as another alternative to combat this issue.













And all is well and good.

 

very interesting, where did you find the caps to replace the hose?

 

The BSH Dual boost tap does the same thing, though it leaves the hose in place. Be sure you put an oil catch can on the hose going from the driver's side of the head cover to the turbo inlet, because all the oil vapor will be going into the turbocharger and then into the intercooler without the PCV hose.

Dave

 

So has it been "agreed" on by the majority whether the pcv hose going to the air inlet tube/turbo is the better location for a single OCC? Or is it on the passenger side going into the intake mani?

Also, looking to install mine soon (didn't spend the hundreds of dollars on the vendors ones here, just have a simple and as effective one that was much cheaper), but will have to cut the pcv hose and put a adapter to feed the hose to the occ. Anyone know the size of the hose ID?

 

they look like they've got to be some sort of OEM thing? Has a very similar paint dot as the removed hose too

 

damn someone beat me to it...

This guy is dead on. However removing the intake manifold line is really only half of the equation.

Now that the intake manifold line is blocked off, Instead of running vapors from your can to your intake boot, you can just run a vent off of your can. This way virtually all of the disgusting blow by is directed in to your can. Normally this wouldn't work because the air would have to be monitored and running a vent would induce a massive vacuum leak. buuuttt..... youve deleted the vacuum so its all gray. simply take your BSH port that is running to your intake boot and put a filter on it. (dont forget to block off the boot)

P.S. as an added bonus by deleting your intake pcv port you have a spare 12 heater or power souce available. you can use this to do all sorts of things. but ill save that for another topic

 

Hmmm. That would be pumping all the crap into the turbo no???

I think it makes sense to keep vacuum to suck out the vapor. I'm actually thinking of running 2 catch cans for each side. Unless someone can explain to me why blocking off one side makes no diffence to the PCV function...

 

With two oil catch cans, you are not changing the designed PCV system.
Which can catches the most oil? I would guess the passenger side one would.

Most cars have only one PCV hose. As long as the crankcase is vented somehow, there won't be any pressure built up.

I installed the BSH dual boost tap for two reasons, I didn't want to spend the extra money for another catch can and I wanted a place to get a signal for my boost pressure gage.

Dave

 

So now all crankcase vapor is being dumped into the turbo. I wouldn't call this a good thing in my book. I guess one has to weigh their options. Decreasing efficiency of the turbo from more gunk or keeping vapors ducted back to the intake manifold. I would still opt to clean the intake manifold every so often by hand than risk ruining a turbo with all the crankcase vapors.

Even with a catch can, how sure can one be sure of the efficiency of ones that are available? If anything I would block off the PCV tube to the turbo and rig up a catch can on the intake manifold side.

 

country boy shane, black r56s read my post.

you dont need to run it into the car anymore.

 

Ah totally missed your point!

Does anyone know what that sensor is reading that's on the PCV tube to the turbo inlet tube? I heard it was a heater of sorts

 

I like this better than the boost tap thing from BSH that I am using. I'm also venting the other side to atmosphere with a large breather filter on the end and capping off the hole on the intake tube. I just didn't want to deal with a catch can.

+1 to the question of where you buy the caps? I know they are an OEM part from another Peugeot model even have the part number of 0361S4. Below is a link to the etuners writeup.

http://www.etuners.gr/en/index.php?s=12&t=299

 

Where can I find this part in the US?

 

+1

 

+2

 

Hey guys,

Because Peugeot and Citroen do not exist in the States, it will be kind of hard to order the part through their dealerships.
They are available in all other regions where PSA cars are sold, such as Mexico, South America, Europe, Asia and Australia.

The caps are very cheap - they cost approx 2.8-3 Euros/piece.

 

If any body wants any of these caps, I have a box full, (yes really) don't ask why, I just do, so you can have them for cost plus postage from the UK, I can't say fairer than that.

 

Czar do you have a part number? I can pick them up at the local dealer.

 

The part No is: 0361.S4

 

Thanks!

 

So I installed a OCC on the passenger side line. One thing I would like to know is, where is the PCV valve located? Is it in the valve cover or the inlet manifold? Because I found nothing in the hose that joins the two. The reason I ask is because if it's in the Valve cover I will have to put one just outside the inlet manifold to avoid pressurizing my OCC (and Boost loss from the extra hose length)

By the way, it is a major PITA adapting hoses to the factory hose. I used a 5/8"ID hose and fittings, but the factory one is corrugated and more like half way between 5/8" and 3/4". I eventually found some adapters and used instant gasket to make sure there were no leaks.

I got an OCC from ebay that had the top and bottom bolted on, so I could manufacture a baffle system inside. It's been on for a week, but has not really registered anything on the sight glass yet. When doing anything on this side of the PCV, it is super important to have zero leaks, as you will get a CEL saying increased emmissions. Don't rush the install if you use instant gasket, and make sure it is fully cured before starting the engine. Otherwise it will just suck a hole in you seal and viola!, VACUUM LEAK!!!.

 

check this out Link

 

What's up with the link? I could see it on my blackberry today, but no go now... Is it a problem with vendor posting or something?

 

I haven't cut one open yet to get a full view, but there is basically a plastic flap just inside the hole of both the driver and passenger side breather pipes. These look to open and close in the same way a traditional ball/spring PCV does.

They both gather crank case gasses from about the middle of the valve cover through a hole roughly .75 x 1.5 inch.

The caps are cool and are a good find. Cheap, easy OE fixes are always nice. Have you had any experience yet tracking a car set up like this? I am just curious how it handles loosing a breather source.

 

Although the caps are a relatively good idea, I personally would NOT recommend this idea on the track, as the crankcase pressures are far different from regular street driving!

for the track you want to evacuate crankcase pressure efficiently and quickly, and so I adapted a completely different method, I still capped off the inlet when using the stock inlet manifold, although now I use my bespoke Aluminum inlet manifold!