corsasport.co.uk
  Not logged in [Login - Register]  
You Are Not Registered Or Not Logged In  

Corsa Sport » Message Board » General Chat » Oil Breather Pipe (rocker cover into the induction pipe).......Why's it there??


New Topic
New Poll 		  Subscribe | Add to Favourites

You are not logged in and may not post or reply to messages. Please log in or create a new account or mail us about fixing an existing one - register@corsasport.co.uk

There are also many more features available when you are logged in such as private messages, buddy list, location services, post search and more.


Author Oil Breather Pipe (rocker cover into the induction pipe).......Why's it there??
MattyB
Member
Registered: 13th Nov 01
Location: 118.5bhp :D
User status: Offline
14th Jul 04 at 14:48   View User's Profile U2U Member Reply With Quote
I am considering a rethink of my induction set up which will involve removal of most of the standard OE induction piping, coz its too long and very restrictive.

At one point, a breather pipe (coming from the the rocker cover), joins the induction pipe (i've seen this on many cars), obviously carrying oil vapour.

However, why is it there? What is its use? What problems will i come accross if i remove the pipe, and replace with a little piper X breather filter thing.

thanks

Matt

PS: note, mine is a turbo, so are they any extra problems this could cause?

[Edited on 14-07-2004 by MattyB]
Adam-D
Member
Registered: 11th May 02
Location: Cheshire
User status: Offline
14th Jul 04 at 14:56   View User's Profile U2U Member Reply With Quote
you can make a oil catch tank and put a breather filter just after it, itll be ok
MattyB
Member
Registered: 13th Nov 01
Location: 118.5bhp :D
User status: Offline
14th Jul 04 at 15:02   View User's Profile U2U Member Reply With Quote
cool but i'd rather just not spend any money on it at all! lol.

Could i not just block it.
Adam-D
Member
Registered: 11th May 02
Location: Cheshire
User status: Offline
14th Jul 04 at 15:03   View User's Profile U2U Member Reply With Quote
dont block it
ak did it with a bit of pipe a small sprite bottle and a breather filter
Greasemonkey
Member
Registered: 17th Apr 02
Location: Drives a Tractor
User status: Offline
14th Jul 04 at 15:05   View User's Profile U2U Member Reply With Quote
its for environmental purposes, oil vapour is a little toxic, my breather runs down behind the front arch liner and exits towards the floor, ya dont want toxic vapour in ya engine bay, it smells and gets sucked into ya air vents and blown into the cabin,
MattyB
Member
Registered: 13th Nov 01
Location: 118.5bhp :D
User status: Offline
14th Jul 04 at 15:08   View User's Profile U2U Member Reply With Quote
Oh rite.....so i could run some 1" pipe down and away, and just leave the end open?

i dont see where the 'vapour' comes from? just from round the cams and stuff?

Matt
Adam-D
Member
Registered: 11th May 02
Location: Cheshire
User status: Offline
14th Jul 04 at 15:20   View User's Profile U2U Member Reply With Quote
you could but id advise a filter too
MattyB
Member
Registered: 13th Nov 01
Location: 118.5bhp :D
User status: Offline
14th Jul 04 at 15:34   View User's Profile U2U Member Reply With Quote
i've heard people say that the vapour acts a lubricant and rust prevention on the fins of the turbo? Or is this just crap?

[Edited on 14-07-2004 by MattyB]
Greasemonkey
Member
Registered: 17th Apr 02
Location: Drives a Tractor
User status: Offline
14th Jul 04 at 15:41   View User's Profile U2U Member Reply With Quote
i think the vapour is from the sump its what gets past the piston rings?????, i had a 7mm gouge in my no1 cylinder wall due to gugeon pin coming detached and man was there some vapour, my car became a kettle lol
Kris TD
Member
Registered: 25th Mar 02
Location: Ware, Hertfordshire
User status: Offline
14th Jul 04 at 16:18   View User's Profile U2U Member Reply With Quote
i asked this exact question on mig yesturday, basically you need to keep it there as it lubricates the turbo and stops the veins rusting up. however a oil catch tank is the best option, but the chanes are there isnt much oil that goes down it anyway.
Kris TD
Member
Registered: 25th Mar 02
Location: Ware, Hertfordshire
User status: Offline
14th Jul 04 at 16:19   View User's Profile U2U Member Reply With Quote
oh and dont block it up as your car will piss out blue smoke
iceman
Member
Registered: 22nd Jul 00
Location: Berkshire
User status: Offline
14th Jul 04 at 16:23   View User's Profile U2U Member Reply With Quote
get a catch tank from think automotive i paid 100 quid for a chrome 1 then get some pipe then bobs ur uncle
Kris TD
Member
Registered: 25th Mar 02
Location: Ware, Hertfordshire
User status: Offline
14th Jul 04 at 16:23   View User's Profile U2U Member Reply With Quote
http://www.migweb.co.uk/forums/showthread.php?t=138550
MattyB
Member
Registered: 13th Nov 01
Location: 118.5bhp :D
User status: Offline
14th Jul 04 at 17:06   View User's Profile U2U Member Reply With Quote
cool
Kris TD
Member
Registered: 25th Mar 02
Location: Ware, Hertfordshire
User status: Offline
14th Jul 04 at 17:07   View User's Profile U2U Member Reply With Quote
im gonna get a catch tank, im liking doing engine stuff now
DaveC
Member
Registered: 29th Mar 02
Location: Buckinghamshire
User status: Offline
14th Jul 04 at 17:12   View User's Profile U2U Member Reply With Quote
in addition to the lubricating, its there as part of the crank case ventilation system, in the olden days this used to vent to atmosphere underneath the car, it vents blow-by gasses and toxic oil vapour that collects in the crankcase.

These days all vehical emmisions must be vented through the exhaust, so they are drawn from the crankcase via the rocker cover through this pipe then re-burned and shoved through the exhaust pipe.

Hope that helps a bit!

Dave

ps if you do a google search for positive crank case ventilation there are loads of topics on it
stripes1976
Member
Registered: 2nd Nov 04
Location: beer garden
User status: Offline
26th Mar 05 at 23:31   View User's Profile U2U Member Reply With Quote
If you pass too much vapour back into the inlet it can cause excessive carbon build up and pre-ignition and detonation. It also lowers the output of your engine it kinda defeats the object of putting say optimax in if its pumping gasses into the inlet which has the opposite effect that the higher RON rated fuel has. It wont be a significant difference but on say a high boost aplication it can dramatically effect the amout of boost you can run!!!
waynep
Member
Registered: 20th Apr 02
Location: london
User status: Offline
26th Mar 05 at 23:34   View User's Profile U2U Member Reply With Quote
this was over a year ago !! grr grave diggeeeeeer
Morley
Member
Registered: 17th Dec 03
Location: Lancaster, Lancashire
User status: Offline
27th Mar 05 at 00:23   View User's Profile U2U Member Reply With Quote
freaky shit, I was going to ask a similar question just now, the threads ancient, thats just fait that this was revived from the dead LOL

 
New Topic
New Poll

Corsa Sport » Message Board » General Chat » Oil Breather Pipe (rocker cover into the induction pipe).......Why's it there?? 23 database queries in 0.0117059 seconds