Rear PCV

[scopes]

Rear PCV

So would it possible to run the rear PCV to the atmosphere while running the front BSH PCV delete kit ?

I know R-tech do the full delete kit, but I found it smoked too much for my liking, so without routing it into the exhaust to vent to the exhaust, I was “thinking” of adding a catch-can to the rear PCV then vent it to the atmosphere.
I would also be concerned with venting it to the exhaust, that it might end up sucking exhaust gases back into the valve cover…

What would peoples thoughts be on this ?

I would like to know, how safe for the engine, would it be venting the rear PCV out with the front still being vented into the valve cover?

With the turbo being blanked off, it would reduce the amount of oil vapours entering in around the turbo/ turbo discharge pipe / intercooler etc… Could this have any effect on the turbo ?

[Dan_FR]

I'm confused..

You've run the R-Tech kit but found it smokes too much? Smoke from the exhaust? If so then you have either fitted the kit incorrectly or have problems since it is the most unrestrictive vent to atmosphere setup you can buy.

Running the rear PCV to atmosphere and the BSH plate on the front instead of the R-Tech one will just cause even more restriction, and adding a catch-can will cause even more restriction again

Either run the R-Tech kit, or go back to 100% original factory fit PCV setup

[scopes]

Hi Dan

Partly confused myself ! But was willing to try and test different combinations out to see what I could get to work  best.

Yes, when running the R-Tech delete kit, I found it smoked too much for my liking, the smoke was coming from the two pipes, one attached to the rear PCV pipe and the other from top of the block pipe, crank and cam gasses.
Now which one was causing the smoke, I’m not 100% sure, I would assume it was the rear PCV pipe as fumes/vapour/smoke would rise to the highest point of the engine.

I was thinking about plumbing the pipes in to the exhaust, so the fumes would be sucked out threw the exhaust and not into the engine bay.

Think I had read, that it’s 1 in 10 engines smoke.

Would it be a matter of running longer pipes, further back the car, so the gasses don’t rise from the engine bay ?

When I run the r-tech kit, I did feel the car run smoother… I just don’t like the excess smoke rising from the engine bay.

[scopes]

How have you run yours Dan ?

[Dan_FR]

Right makes more sense....

Smoke from the two pipes is 100% normal, it is hot, oily combustion blow-by. Mine smokes like crazy after a hard drive on a cold/damp evening. You will get this with any VTA setup. Its not so bad with a catch can, but they do pose a huge restriction which you really don't want when moving away from syphoning/scavenging the gases.

Plumbing the pipes in to the exhaust using the venturi effect would work but will require costly custom fabrication

What i would recommend, which is what i've done (running a home made full PCV delete, so in effect the same as the R-Tech kit) is extend the (few cheap plastic joiners from ebay and some marine) hose and run them down to the exhaust tunnel. Mine are attached to the heatshield and finish roughly where the cat would be (thick marine hose but also covered in heat shielding to be safe). All smells, smoke, gases etc. escape to the rear of the car, whereas before i would get the smell coming in through the vents and front windows and it would make me feel sick

[scopes]

Cheers Dan for clearing that up, I didn't fancy shortening my life with oil fumes either ...

Could I ask for any links you have for the parts required, also did you run both hoses down the tunnel ?

Thanks

[scopes]

Also with the heatshield under the intake, it get's in the way of the hose, any ideas of getting something to run at an angle to slip under the heatshield ?

 

[Dan_FR]

I'll have to take a look tonight for links, but mine are for 25mm hoses as that what i'm using - you'd need to check/measure what you had with the R-Tech kit. It's just a simple plastic hose joiner and marine/diesel fuel pipe.

Yes both hoses run down in to the exhaust tunnel, made a few small holes in the tunnel and ran a metal cable tie through and around the hoses to secure them

Afraid i can't help with the rear PCV and heatshield, as my original rear PCV is in place, with it blocked off at the front of the cam cover. The gases are also vented out of the front of the cam cover with the hose running across and under my intake pipe. Niki has mentioned that you should be able to get the breather pipe to run under a heatshield, perhaps a slight bend and some gentle persuasion needed?

[scopes]

Yes mate, that's great. I think i have come up with an idea to bypass the heatsheild without having to cut the heatsheild.

Something the same as the revo intake uses, to join the boost hose from the DV to the intakes turbo pipe.

I'd rather not have any bend in the hose, as it sit's tight against the heatsheild, through time it may cut through the pipe, just thinking ahead...

[Dan_FR]

This is what i used, it is heavy and not very flexible though, but it is suitable for oil and is strong enough to not kink. The connectors just push on - tight fit so didn't need a clips. I'll find a pic i took of my trial fit (still had plastic cable ties while i waited for my order of metal ones to arrive)

http://www.ebay.co.uk/itm/380870719730?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

http://www.ebay.co.uk/itm/310737906591?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

[Dan_FR]

[scopes]

Cheers Dan, so you used a couple of pieces of pipe and joined them together then... 

Good idea with the silver heat protective wrap !

[Dan_FR]

Yeah i originally bought pipe, ran it to the rear of the gearbox area, experienced smoke/smells etc. Decided i didn't want to buy all new pipe and waste what i had, so bought another metre, two joiners, and extended each one half a metre down in to the tunnel and secured it to the side of the heatshield

To be honest i doubt the heat wrap is needed unless you get the car silly hot and sit there idling in traffic in the summer, but i thought better safe than sorry. It's been fine since the middle of August anyway

[scopes]

I'll do something very much the same, just a matter of getting the bit's gathered up and then put it together...

As you say, it's better to be safe than sorry!

 

[jay26r]

Afraid i can't help with the rear PCV and heatshield, as my original rear PCV is in place, with it blocked off at the front of the cam cover. The gases are also vented out of the front of the cam cover with the hose running across and under my intake pipe. Niki has mentioned that you should be able to get the breather pipe to run under a heatshield, perhaps a slight bend and some gentle persuasion needed?
[/quote]

Any pics of your engine bay set up, just got one of these catch can kits and am looking into selling and doin this , i know its an old post but did not see point in another thread to ask you this