Oil Catch Can.

CrispDust · Aug 30, 2008

Ok i've fitted a nice shiny alloy catch can to my 2.0TDi in an attempt to keep intake pipework clean. At the moment it vents to air, not back into manifold.
I will keep peeps updated on the amount of oil it catches over time.

The amount of vapour/positive pressure that comes out of the tube, even at idle is quite something, but at least it isn't being sucked out by the heavy turbo vacuum when it spools up.
I've also "tee'd" the egr vacuum pipe and i'll live with cel light coming on!

Ultra_Joel88 · Aug 31, 2008

Hello there mate.

I did this to my 1.9 TDI a while ago.

There seems to be some speculation as to whether venting it to the air is right, somebody told me something about the control circuit needing positive ventilation.

I had mine vented to the air through a breather filter and the white smoke coming from it caused some muted murmering at a recent rolling road day! Looked like my engine was on fire

devonmikeyboy · Aug 31, 2008

Quick picture of mine.

CrispDust · Aug 31, 2008

Hi,
What control circuit is that?
As long as there is free flow from crankcase I would have thought there is no problem.
I've managed to squeeze mine in between the fuel fliter and washer filler pipe. Need some natty black hose though as I have combination of clear pipe and washing machine waste pipe!!!
Unfortunately on BKD the pipe connections are 22/25mm!!

devonmikeyboy · Aug 31, 2008

My engine is BKD.

CrispDust · Sep 1, 2008

"My engine is BKD."

Ha ha only in name mate! Mr Audi wouldn't recognise your mutated beast.

devonmikeyboy · Sep 1, 2008

I just tweaked a few little things VAG over looked...

Sem · Sep 6, 2008

Anyone running the Mann & Hummel Provent? I have one of these on mine and rate it highly:

http://www.emotors.ca/articles/128.aspx
http://www.mann-hummel.com/industrialfilters/upload/doc/HBOTDjNfiqC.pdf

brad1 · Sep 6, 2008

bought my oil catch can today

devonmikeyboy · Sep 6, 2008

Sem said:
Anyone running the Mann & Hummel Provent? I have one of these on mine and rate it highly:

http://www.emotors.ca/articles/128.aspx
http://www.mann-hummel.com/industrialfilters/upload/doc/HBOTDjNfiqC.pdf

Very good kits if you like the OEM look apparently. I know uncle fester has or is thinking about fitting one.

scotty1 said:
bought my oil catch can today

Where from ?

brad1 · Sep 7, 2008

devonmikeyboy said:
Where from ?

definately not from allards, i dont want to wait weeks lol

Ultra_Joel88 · Sep 7, 2008

I got mine from eBay and have filled it with 2x s/s dishwasher scourers tied up inside an old pair of tights to stop bits of rusty stainless getting sucked in.

Its been in about a month and a half and I'm gonna check inside in a couple of weeks.

Mine is going back to the inlet rather than VTA

brad1 · Sep 7, 2008

Ultra_Joel88 said:
I got mine from eBay and have filled it with 2x s/s dishwasher scourers tied up inside an old pair of tights to stop bits of rusty stainless getting sucked in.

Its been in about a month and a half and I'm gonna check inside in a couple of weeks.

Mine is going back to the inlet rather than VTA

what is VTA if you dont mind me asking

devonmikeyboy · Sep 7, 2008

Ultra_Joel88 said:
I got mine from eBay and have filled it with 2x s/s dishwasher scourers tied up inside an old pair of tights to stop bits of rusty stainless getting sucked in.

Its been in about a month and a half and I'm gonna check inside in a couple of weeks.

Mine is going back to the inlet rather than VTA

Why do you want to vent air poluted with oil fumes back into your inlet ? The air will not get cleaned by going through dishwasher scourers ?

brad1 · Sep 7, 2008

devonmikeyboy said:
Why do you want to vent air poluted with oil fumes back into your inlet ? The air will not get cleaned by going through dishwasher scourers ?

so what is the best way to set it up then, only one hose coming from rocker cover top to the catch tank and put a breather on the catch tank?

devonmikeyboy · Sep 7, 2008

scotty1 said:
so what is the best way to set it up then, only one hose coming from rocker cover top to the catch tank and put a breather on the catch tank?

Yes otherwise like i said above your still putting contaminated air back in the system plus with a breather your engine can dump the excess pressure in the system which is causing most of the problem to start with. :doh:

devonmikeyboy · Sep 7, 2008

If your going to go for an enclosed pressurised system you need to invest in a Mann & Hummel Provent type of divice that filter the oil and air.

brad1 · Sep 7, 2008

oh right, will probably just do mine this way, also what can i block the hole off with that goes into the air intake system from ther airbox?

Ultra_Joel88 · Sep 7, 2008

It is filtering the air its catching the oil and vapour contained in the air coming from the crank case vent.

I checked inside about a week after it had been installed and the "filter" had turned black so is obviously catching oil vapour.

devonmikeyboy · Sep 7, 2008

Ultra_Joel88 said:
It is filtering the air its catching the oil and vapour contained in the air coming from the crank case vent.

I checked inside about a week after it had been installed and the "filter" had turned black so is obviously catching oil vapour.

You seriously telling me you believe that dishwasher scourers when put inside a pair of tights filter the air going through the catch can and remove the oil vapour leaving clean air? Are you on freaking drugs or something ! :blink:

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