Haynes Forums  

Go Back   Haynes Forums > Haynes Roadster Forums > Engine/transmission
FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Display Modes
  #1  
Old 26th May 2013, 05:12 PM
voucht's Avatar
voucht voucht is offline
Senior Member
 
Join Date: Jun 2011
Location: Lautrec, Tarn (81), Occitanie, France
Posts: 879
Default Oil breather hose.

Hi,
Then engine I use (2.0i DOCH from a Sierra) had a direct induction kit fitted on it (big conical air filter) when I bought my donor. It is OK for me to keep it, and I will.

But the oil breather hose (connected at one end to the plastic camshaft cover), isn't connected to anything at the other end. Originally, it is connected to the air filter box, which has been removed by the previous owner to fit the direct induction kit.

What can I do with this other end? I don't really want to leave it open like that.

Thank you for your help and advices.
Reply With Quote
  #2  
Old 26th May 2013, 05:19 PM
Tatey's Avatar
Tatey Tatey is offline
Senior Member
 
Join Date: May 2009
Location: Leicester
Posts: 827
Default

Most people I have seen use an oil catch can with an small cone air filter to allow the engine to breath.
__________________
1.8 Silvertop Zetec (ZX6R Carbs + Megajolt) + Type 9

My Build Blog: http://www.haynes.co.uk/forums/showthread.php?t=2736 - Last Update: 31st October 2020

Total Spent so far: Stopped counting
Reply With Quote
  #3  
Old 26th May 2013, 05:32 PM
K4KEV's Avatar
K4KEV K4KEV is offline
Senior Member
 
Join Date: Feb 2010
Location: WINGATE CO DURHAM
Posts: 1,511
Default

Wot e said /\ Syl or you could just put a little cone filter on the end, as long as the engine can breathe you can put anything on the end
Reply With Quote
  #4  
Old 26th May 2013, 06:11 PM
voucht's Avatar
voucht voucht is offline
Senior Member
 
Join Date: Jun 2011
Location: Lautrec, Tarn (81), Occitanie, France
Posts: 879
Default

OK, excellent, that is what I'm going to do!
Thanks you very much guys
Reply With Quote
  #5  
Old 27th May 2013, 11:50 PM
alga's Avatar
alga alga is offline
Senior Member
 
Join Date: Feb 2009
Location: Vilnius, Lithuania
Posts: 1,249
Default

The positive crankcase ventilation system is sucking the filtered air through the breather in the valve cover. The air then mixes with the crankcase gases and is scavenged through the PCV valve by the intake vacuum.

In other words, connecting both breathers to the same catch tank just negates the whole system. Fit a small filter on the valve cover. Like this: http://www.ebay.co.uk/itm/NEW-Breath...item45f79c00e3
Keep the PCV valve connected to the intake.
__________________
Albert
Haynes Roadster FAQ | Haynes Builder Locations
Gallery, build thread in Lithuanian / via Google Translate.
Reply With Quote
  #6  
Old 11th June 2013, 04:09 PM
voucht's Avatar
voucht voucht is offline
Senior Member
 
Join Date: Jun 2011
Location: Lautrec, Tarn (81), Occitanie, France
Posts: 879
Default

Thank you Albertas for the technical explanations, very instructive. I was not sure what a PCV valve was in English, but again, Wikipedia was here

Here is a picture of the small breather filter i installed. It is attached to a piece of Gates oil hose. Hope this will be OK. If it is vibrating too much when the engine is running, I can put a longer piece of hose and attach it to the block with a P-clip. We'll see when I start the engine (hopefully this month)

2013-06-11_16-14-47_1.JPG

Thanks again.
Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT +1. The time now is 11:22 AM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.