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Model specific boards => Golf mk5 => Topic started by: mrlapou on 09 September 2008, 17:39

Title: Front PCV ribbed pipe ID ?
Post by: mrlapou on 09 September 2008, 17:39
About to buy a check valve to install in-line on the rigid ribbed hose that connects the front PCV to the air manifold.
Bar cutting the pipe in half, was wondering if anyone could tell me:

A) ID of the hose.
B) Is it smooth walled inside or ribbed like the outside?  :smiley:

Tks
Title: Re: Front PCV ribbed pipe ID ?
Post by: bacillus on 09 September 2008, 18:11
could you post a pic of the hose you're describing in the engine compartment?
Title: Re: Front PCV ribbed pipe ID ?
Post by: mrlapou on 09 September 2008, 21:42
The U'ish shaped ribbed tube on the right of this pic.

(http://i168.photobucket.com/albums/u176/BSHStreetandStrip/PCV-1.jpg?t=1218078856)
Title: Re: Front PCV ribbed pipe ID ?
Post by: bacillus on 09 September 2008, 22:25
That hose is ribbed on the inside to mirror the external ribbing.

Can I suggest you ring http://www.jbsautodesigns.co.uk/ and ask if they have the Eurojet PCV fix in stock as it will do what you are contemplating in a more professional manner. It should also fit under the stock air box.

(http://www.20squared.com/catalog/images/pcvfix_site.jpg)
Title: Re: Front PCV ribbed pipe ID ?
Post by: neg on 12 September 2008, 17:55
or maybe the Bulletproof PCV fix - quite a new solution to it??

http://www.bshspeedshop.com/store/product.php?productid=16937&cat=1011&page=1

Title: Re: Front PCV ribbed pipe ID ?
Post by: Teutonic_Tamer on 12 September 2008, 18:13
or maybe the Bulletproof PCV fix - quite a new solution to it??

http://www.bshspeedshop.com/store/product.php?productid=16937&cat=1011&page=1

That's very OTT!

What are the problems peeps are experiencing with the OEM PCV valves and piping?  :undecided:
Title: Re: Front PCV ribbed pipe ID ?
Post by: mrlapou on 12 September 2008, 18:13
Thanks for the replies. Have decided for about $21 to give this valve a go...


(http://uk.farnell.com/productimages/farnell/standard/706663606-40.jpg)
Title: Re: Front PCV ribbed pipe ID ?
Post by: mrlapou on 12 September 2008, 18:19
Looked at the pipe last night. Disconnected the manifold end. Then tried blowing and sucking into it. Could hear and feel the little valve in th PCV pop closed and open. But after a few trys it seemed to stick shut and would not allow suction to open it i.e  simulating pressure from the engine head into the air intake manifold.
Measured the tube, which will be close to 13mm ID.
Title: Re: Front PCV ribbed pipe ID ?
Post by: neg on 12 September 2008, 19:25
or maybe the Bulletproof PCV fix - quite a new solution to it??

http://www.bshspeedshop.com/store/product.php?productid=16937&cat=1011&page=1

That's very OTT!

What are the problems peeps are experiencing with the OEM PCV valves and piping?  :undecided:

Not holding pressure when remapped, some see their actual psi drop a little. The concern then was the manifold being put under pressure

Someone tested a new OEM PCV and this was shown to leak slightly

I think another thing people notice is blue smoke from the exhaust at WOT as it burns off the oil which has snuck through

There is quite a bit of info on vortex and golfmk5
Title: Re: Front PCV ribbed pipe ID ?
Post by: Teutonic_Tamer on 12 September 2008, 21:14
or maybe the Bulletproof PCV fix - quite a new solution to it??

http://www.bshspeedshop.com/store/product.php?productid=16937&cat=1011&page=1

That's very OTT!

What are the problems peeps are experiencing with the OEM PCV valves and piping?  :undecided:

Not holding pressure when remapped, some see their actual psi drop a little.

Ahh, OK, thanks.  :smiley:

The concern then was the manifold being put under pressure

That really shouldn't be a problem, as the pressure in the crankcase won't be that great, and the manifold is designed to specifically cope with the PCV system - unless the rings are really shagged - but then a PCV valve would be the least of your worries.  :rolleyes:

Someone tested a new OEM PCV and this was shown to leak slightly

Oh - that's not good!  :shocked:  Is this a common trait, or are they relatively isolated incidents?  :undecided:

I think another thing people notice is blue smoke from the exhaust at WOT as it burns off the oil which has snuck through

Hmmmm.  This would appear to be more common then.  When I replaced my standard I/C with the S3 one, there was quite a bit of oil which dribbled out of the hoses and the old core.  Yet when I whipped the plugs out, there was no evidence of burning any oil.  :undecided:

Might take another look over the weekend.

There is quite a bit of info on vortex and golfmk5

Alas, there is far too much chaff before you can find any wheat, particularly on the 'tex.  :rolleyes:
Title: Re: Front PCV ribbed pipe ID ?
Post by: neg on 13 September 2008, 11:35
there is far too much chaff before you can find any wheat, particularly on the 'tex.  :rolleyes:

Dont I know it !!  I spent ages looking into this when I was down on boost slightly.  Also on occasion I also noticed a blue puff from my exhaust which initially worried the sh!t out of me.  I put the PCV fix on and since then I have not seen it again, more recently I also swapped the C revision PCV for the later F revision leaving the PCV in place also - not noticed it since.

Note: F was the latest revision to the C version but there are also E and G revisions which only have 1 check valve in, the C and F have 2 - this is down to not having a rear check valve - which the later engines have.  Some people have just blocked it off (noticed this on a couple of cars at Inters this year) but BSH obviously looked into a more permanent more appealling fix - and it does look like they did a fair bit of research.
Title: Re: Front PCV ribbed pipe ID ?
Post by: Teutonic_Tamer on 13 September 2008, 12:31
there is far too much chaff before you can find any wheat, particularly on the 'tex.  :rolleyes:

Dont I know it !!  I spent ages looking into this when I was down on boost slightly.  Also on occasion I also noticed a blue puff from my exhaust which initially worried the sh!t out of me.  I put the PCV fix on and since then I have not seen it again, more recently I also swapped the C revision PCV for the later F revision leaving the PCV in place also - not noticed it since.

Note: F was the latest revision to the C version but there are also E and G revisions which only have 1 check valve in, the C and F have 2 - this is down to not having a rear check valve - which the later engines have.  Some people have just blocked it off (noticed this on a couple of cars at Inters this year) but BSH obviously looked into a more permanent more appealling fix - and it does look like they did a fair bit of research.

Thanks for that, much appreciated.  :smiley:

Is the part number easy to see on the actual PCV valve, or do you need to be a contortionist to view it?  :grin:
Title: Re: Front PCV ribbed pipe ID ?
Post by: mrlapou on 13 September 2008, 12:44
PM is on underside of PCV body, to view, use a mirror or take PCV off..  :wink:

There are small external differenecs between Rev C and later model valves.
This pic is of my old Rev D which I cut up / dismantled to see what was what... :nerd:

(http://i63.photobucket.com/albums/h151/MrLapou/PCV%20Rev%20D%20Valve/PVCDDis-assembled.jpg)
Title: Re: Front PCV ribbed pipe ID ?
Post by: Teutonic_Tamer on 13 September 2008, 12:49
PM is on underside of PCV body, to view, use a mirror or take PCV off..  :wink:

Thanks mate, appreciated.  :smiley:
Title: Re: Front PCV ribbed pipe ID ?
Post by: neg on 13 September 2008, 19:16
Useful pic...

(http://homepage.ntlworld.com/neil.gibbs3/images/gti/fsi_pcv_valves.jpg)
Title: Re: Front PCV ribbed pipe ID ?
Post by: Teutonic_Tamer on 14 September 2008, 15:13
Useful pic...

(http://homepage.ntlworld.com/neil.gibbs3/images/gti/fsi_pcv_valves.jpg)

Double check first though,  :wink: as that is for the yankie-spec engines, which have a very different emissions control system. :nerd:
 :smiley:
Title: Re: Front PCV ribbed pipe ID ?
Post by: neg on 14 September 2008, 15:16
Mine was the C so I needed the F, when I went to the dealer (and I spoke to vagparts too) I gave them the chassis no and part no and they both came back with the latest F as the replacement - so all tied in for me.
Title: Re: Front PCV ribbed pipe ID ?
Post by: Teutonic_Tamer on 14 September 2008, 15:39
All I'll say is there is a difference on ETKA between the yankie and the EU engine variants!  :wink:  (The yankie engine has a one-way valve, whereas the EU has a 2-way valve  :nerd:).
Title: Re: Front PCV ribbed pipe ID ?
Post by: Teutonic_Tamer on 15 September 2008, 14:04
OK, I checked mine over the weekend.

It was an "F" version, and both check valves worked perfectly, holding up very good pressure, and closing positively.  I wasn't able to check the main valve though, although I did clean it with some carb cleaner, and none leaked from where it shouldn't.  (BWA engine in a 2007model year, for reference).

Don't do what I subsequently did though, and sucked on the valves after dousing them with the carb cleaner - a lung full of xylene fumes is not nice!  :sick:  :embarassed:
Title: Re: Front PCV ribbed pipe ID ?
Post by: Top Cat on 15 September 2008, 15:02
OK, I checked mine over the weekend.

It was an "F" version, and both check valves worked perfectly, holding up very good pressure, and closing positively.  I wasn't able to check the main valve though, although I did clean it with some carb cleaner, and none leaked from where it shouldn't.  (BWA engine in a 2007model year, for reference).

Don't do what I subsequently did though, and sucked on the valves after dousing them with the carb cleaner - a lung full of xylene fumes is not nice!  :sick:  :embarassed:

Surely you telling people to be careful what they suck into their lungs cannot be taken serious when there is a F**King big 50 skinner directly below this comment in your sig.  :rolleyes: :rolleyes: :rolleyes: :rolleyes: :rolleyes:  :grin:
Title: Re: Front PCV ribbed pipe ID ?
Post by: RedRobin on 15 September 2008, 15:13
Surely you telling people to be careful what they suck into their lungs cannot be taken serious when there is a F**King big 50 skinner directly below this comment in your sig.
 
:rolleyes: :rolleyes: :rolleyes: :rolleyes: :rolleyes:  :grin:

....http://www.youtube.com/watch?v=067FMmyrXmQ&feature=related (http://www.youtube.com/watch?v=067FMmyrXmQ&feature=related) :evil:
Title: Re: Front PCV ribbed pipe ID ?
Post by: Teutonic_Tamer on 15 September 2008, 15:49
Surely you telling people to be careful what they suck into their lungs cannot be taken serious when there is a F**King big 50 skinner directly below this comment in your sig.
 
:rolleyes: :rolleyes: :rolleyes: :rolleyes: :rolleyes:  :grin:

....http://www.youtube.com/watch?v=067FMmyrXmQ&feature=related (http://www.youtube.com/watch?v=067FMmyrXmQ&feature=related) :evil:

I just don't get that crap vid - that is the worst 10 minutes of my life - typical yankie trailer trash crap!  :rolleyes:
Title: Re: Front PCV ribbed pipe ID ?
Post by: RedRobin on 15 September 2008, 16:06
Surely you telling people to be careful what they suck into their lungs cannot be taken serious when there is a F**King big 50 skinner directly below this comment in your sig.
 
:rolleyes: :rolleyes: :rolleyes: :rolleyes: :rolleyes:  :grin:

....http://www.youtube.com/watch?v=067FMmyrXmQ&feature=related (http://www.youtube.com/watch?v=067FMmyrXmQ&feature=related) :evil:

I just don't get that crap vid - that is the worst 10 minutes of my life - typical yankie trailer trash crap!  :rolleyes:

....Sorry to waste 10 minutes of your life, T_T :sad:

I guess it's different for me because I can relate to it as an ex joint smoker - I remember one long hot summer in London when all you could get was Thai Sticks and we all wanted something lighter to go out in public on! A huge laugh though :cool:

I gave up both smokin' and alcohol on the same day - I had enough.

Anyway, who's the black dude with the fat joint in your sig?
Title: Re: Front PCV ribbed pipe ID ?
Post by: Teutonic_Tamer on 15 September 2008, 16:16
Anyway, who's the black dude with the fat joint in your sig?

That's me!

 :evil:  :evil:   :evil:  :evil:

I dunno, found the pic on the net somewhere ages ago.  A bit of weed every now and then won't do any harm, nor the odd lunchtime tipple:
(http://i158.photobucket.com/albums/t108/Teutonic_Tamer/onlyONEdrink.jpg)
Title: Re: Front PCV ribbed pipe ID ?
Post by: joesgti on 15 September 2008, 16:23
Anyway, who's the black dude with the fat joint in your sig?

That's me!

 :evil:  :evil:   :evil:  :evil:

A bit of weed every now and then won't do any harm
(http://i158.photobucket.com/albums/t108/Teutonic_Tamer/onlyONEdrink.jpg)

+1 :wink: :wink:
Title: Re: Front PCV ribbed pipe ID ?
Post by: RedRobin on 15 September 2008, 16:48
....Although I only ever drank spirits (hate beer and wine :sick:) I never drunk too much but I used to smoke the weed every day - Probably why my short term memory is shot!

Anyway, we're a bit off topic and probably my fault as usual. What the feck was the topic? I've forgotten already! :grin:
Title: Re: Front PCV ribbed pipe ID ?
Post by: mrlapou on 15 September 2008, 17:28
New check valve now fitted. The ribbed pipe ID was about 14mm and check valve OD was 13mm. Wrapped  self amalgamating tape around the valve and gently pushed into the the cut pipe.
Secured with worm drive clamps.

Took car for a spin, seemed better down changing, on part throttle while in tip mode.
Will take a few Vagcom plots of boost Verse RPM when I've a chance later in the week to compare with previous reults.