Oil Breather Tower

Big lumps of metals and spanners. Including servicing and fluids.

Moderators: Moderators, User administrators

freckvan1
Posts: 192
Joined: 18 Jul 2010, 19:00
80-90 Mem No: 8492
Location: freckleton, near preston, lancashire

Oil Breather Tower

Post by freckvan1 »

Evening All ,

Has anyone taken apart the Oil Breather Tower to give it a thorough cleaning ?
Part number on top of unit :- 025 715 451. Also 89 111 70 902

My van 1984 , 1,9 DG , W/C , Petrol

The spare I have has been immersed in Jizer degreasant all day , after swilling out and
blasting with hose pipe (no access to air) I'm not to confident all crud has been removed .

The structure appears to have a filter at the top end , parly covered by circular flap , set at
an angle ,the walls of the unit appear to be double skinned .
The circular flap looks as though it may be clipped in to internal wall , which if removed gives access to Filter .

Any advice appreciated , plus links to drawings will be a great help .

Atb ,
Chris
1984 1,9DG. W/C

User avatar
itchyfeet
Posts: 12385
Joined: 23 Jul 2007, 17:24
80-90 Mem No: 12733
Location: South Hampshire

Re: Oil Breather Tower

Post by itchyfeet »

Yep that angled bit comes out which helps cleaning, no filter as far as i'm aware...
Need a new o ring when you come to refit

ImageImage
1988 DG WBX LPG Tin Top
1989 DJ digijet WBX Holdsworth Villa 3 Pop Top
itchylinks

freckvan1
Posts: 192
Joined: 18 Jul 2010, 19:00
80-90 Mem No: 8492
Location: freckleton, near preston, lancashire

Re: Oil Breather Tower

Post by freckvan1 »

Thanks Itchy ,

My spare is off a 2,1 I think and am intending a straight swap with one now on .

Noticed there is just one cut out , right hand on your photos , this spare has two ,
I'll have to find out if this spare is compatible before I remove original .

Did you remove inner by compressing clip ?

Atb,
Chris
1984 1,9DG. W/C

User avatar
itchyfeet
Posts: 12385
Joined: 23 Jul 2007, 17:24
80-90 Mem No: 12733
Location: South Hampshire

Re: Oil Breather Tower

Post by itchyfeet »

Same on all wbx as far as I know, maybe some slight year mods to the part, 2.1 will be a later van, this pic is one off an early van, that recess just aligns with the lug on the othef part so it fits one way around.

lever it out with a screwdriver, there are some squareish holes.

https://www.vwheritage.com/shop/0251154 ... x-1-9-2-1/" onclick="window.open(this.href);return false;
1988 DG WBX LPG Tin Top
1989 DJ digijet WBX Holdsworth Villa 3 Pop Top
itchylinks

freckvan1
Posts: 192
Joined: 18 Jul 2010, 19:00
80-90 Mem No: 8492
Location: freckleton, near preston, lancashire

Re: Oil Breather Tower

Post by freckvan1 »

Excellent Itchy , thanks for help .

Sat in kitchen playing with my Tower and it's now come apart , hurrah !

Atb,
Chris
1984 1,9DG. W/C

User avatar
itchyfeet
Posts: 12385
Joined: 23 Jul 2007, 17:24
80-90 Mem No: 12733
Location: South Hampshire

Re: Oil Breather Tower

Post by itchyfeet »

If it's clean enough to be in the kitchen, it's probably clean enough already :D
1988 DG WBX LPG Tin Top
1989 DJ digijet WBX Holdsworth Villa 3 Pop Top
itchylinks

User avatar
slowcoach
Posts: 1195
Joined: 06 May 2010, 10:23
80-90 Mem No: 8892
Location: West Yorkshire
Contact:

Re: Oil Breather Tower

Post by slowcoach »

Someone had taken one of these apart, or cut it apart over on the samba forum, and took some photos.

Sparked off quite a discussion, seems like there's quite a lot going on in those things!

If I remember right, there's a gauze type filter that's often rotten away.
===================
1984 TRAKKA Conversion Subaru EJ20 5 Speed

User avatar
ghost123uk
Posts: 6837
Joined: 10 Mar 2006, 10:15
80-90 Mem No: 2585
Location: John in Malpas, in the very S. W. part of Cheshire.
Contact:

Re: Oil Breather Tower

Post by ghost123uk »

The gauze bit isn’t actually a filter, it is there to help the oil mist to condense back into oil droplets and to then fall back into the engine. The gauze bit often gets very gunged up with crud that is not easily removed with solvents (Jizer / Petrol etc). It is a common issue on the 8V Golf/Scirocco motor whereby it gets blocked and the resultant crankcase pressure creates the symptoms of a knackered engine. Many folk have replaced those engines when all it was was a blocked gauze it the breather.
Got a new van, but it's a 165bhp T4 [shock horror] Accurate LPG Station map here

User avatar
slowcoach
Posts: 1195
Joined: 06 May 2010, 10:23
80-90 Mem No: 8892
Location: West Yorkshire
Contact:

Re: Oil Breather Tower

Post by slowcoach »

ghost123uk wrote:The gauze bit isn’t actually a filter, it is there to help the oil mist to condense back into oil droplets and to then fall back into the engine. The gauze bit often gets very gunged up with crud that is not easily removed with solvents (Jizer / Petrol etc). It is a common issue on the 8V Golf/Scirocco motor whereby it gets blocked and the resultant crankcase pressure creates the symptoms of a knackered engine. Many folk have replaced those engines when all it was was a blocked gauze it the breather.

good info!
===================
1984 TRAKKA Conversion Subaru EJ20 5 Speed

Ripa
Posts: 1
Joined: 18 Jan 2015, 17:54
80-90 Mem No: 0

Re: Oil Breather Tower

Post by Ripa »

slowcoach wrote:
ghost123uk wrote:The gauze bit isn’t actually a filter, it is there to help the oil mist to condense back into oil droplets and to then fall back into the engine. The gauze bit often gets very gunged up with crud that is not easily removed with solvents (Jizer / Petrol etc). It is a common issue on the 8V Golf/Scirocco motor whereby it gets blocked and the resultant crankcase pressure creates the symptoms of a knackered engine. Many folk have replaced those engines when all it was was a blocked gauze it the breather.

good info!

I agree, good info.... all off it.... have the same issue with my oiled breather hose and air filter so I have properberly have to do some service on the tower or replacement ...

henryb
Posts: 57
Joined: 29 Mar 2016, 17:56
80-90 Mem No: 0

Re: Oil Breather Tower

Post by henryb »

Hi Ghost 123uk have messaaged you about the gauze in the oil breather tower, we have just taken ours off to clean and there is no gauze in there, just wondered if you knew if we should get new breather tower or can we just replace gauge? Thanks

User avatar
silverbullet
Trader
Posts: 13428
Joined: 08 Jun 2009, 09:51
80-90 Mem No: 6908
Location: Surrey Syncronaut #156
Contact:

Re: Oil Breather Tower

Post by silverbullet »

There is a vacuum-actuated diaphragm and spring in the top. It allows the engine to breathe in (& burn) crankcase blow-by gases at high vacuum i.e. closed throttle. Unless it works the other way and only opens under full-throttle, low-vacuum conditions, which would make more sense for idle emission testing. I cant recall now.
Reckoning is that a lot of wbx will have rotted the diaphragm by now and it's non-servicable anyway.

Sent from my Atari 7800
85 syncro Caravelle twin slider Oettinger T3200E-6
90 SA Microbus supercharged wbx/UN1 project

http://www.025motorsport.com

henryb
Posts: 57
Joined: 29 Mar 2016, 17:56
80-90 Mem No: 0

Re: Oil Breather Tower

Post by henryb »

Thanks for the info silver bullet, cheers

User avatar
itchyfeet
Posts: 12385
Joined: 23 Jul 2007, 17:24
80-90 Mem No: 12733
Location: South Hampshire

Re: Oil Breather Tower

Post by itchyfeet »

I knew that enoscope I bought would have a use sometime, gold bit is a spring.
Image
Last edited by itchyfeet on 11 Apr 2016, 19:06, edited 1 time in total.
1988 DG WBX LPG Tin Top
1989 DJ digijet WBX Holdsworth Villa 3 Pop Top
itchylinks

User avatar
silverbullet
Trader
Posts: 13428
Joined: 08 Jun 2009, 09:51
80-90 Mem No: 6908
Location: Surrey Syncronaut #156
Contact:

Re: Oil Breather Tower

Post by silverbullet »

I recall sawing the top off a damaged one for a look inside. Not sure I kept it though...
85 syncro Caravelle twin slider Oettinger T3200E-6
90 SA Microbus supercharged wbx/UN1 project

http://www.025motorsport.com

Post Reply