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displaying posts 1 to 13 of 13
| Author | Subject: Rocker Breather pipes |
 mark-house
Seasoned Pro  Location: Bury St Edmunds Registered: 07 Apr 2009 Posts: 1,096 Status: Offline |
Post #1
Just a quick question. What effect would it have on the running of the enigne if the two breather hoses on the top right hand side of the rocker were blocked? ________________________________________ Peugeot 306 GTi 6BMW 320 td compact M-sport 1967 Mini Cooper 1990 Jaguar XJR 4.0 |
 Posted 8th Mar 2010 at 17:55
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welshpug!
Capt Pedantic  Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,817 Status: Offline |
Post #2
It'd probably blow the dipstick out of the tube.________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 8th Mar 2010 at 17:58
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jeffers
Forum Admin Location: Leeds Registered: 14 Dec 2003 Posts: 3,702 Status: Offline |
Post #3
welshpug! wrote: It'd probably blow the dipstick out of the tube. Almost definately!  ________________________________________ Team Running Engine again!Team Negative Camber! My Budget track engine build thread! Now appearing at a Trackday near you!!  |
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Posted 8th Mar 2010 at 18:13
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mark-house
Seasoned Pro Location: Bury St Edmunds Registered: 07 Apr 2009 Posts: 1,096 Status: Offline |
Post #4
Cool that would be fun to see! what about if there was a partial blockage? could it cause idle/rev faults similar to those from a failing MAP/ICV?________________________________________ Peugeot 306 GTi 6BMW 320 td compact M-sport 1967 Mini Cooper 1990 Jaguar XJR 4.0 |
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Posted 9th Mar 2010 at 00:01
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matt306gti
Newbie  Location: Bournemouth Registered: 10 Feb 2010 Posts: 41 Status: Offline |
Post #5
Highly likely..The rocker breather system is there to do 2 jobs. Remove oil and water from the hot air at the top of the head and secondly to relieve positive crankcase air pressure iirc  It also stops backfires into the inlet manifold from igniting crank case gasses, which you really dont want happening!By pulling these gasses from the crankcase it will also prolong the life of your engine oil, which is a nice little bonus On idle it basically sucks the bad vapours out of the engine so if it is partially blocked it will almost definately be causing issues. Scrap the old pipes and stick a catch tank on there, make sure you plumb it in properly though, many people opt to plug the pipe on the inlet mani but this is actually wrong  |
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Posted 9th Mar 2010 at 07:24
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chris with a pug
Seasoned Pro  Location: Southampton Registered: 16 Feb 2003 Posts: 5,366 Status: Offline |
Post #6
matt306gti wrote: Highly likely.. make sure you plumb it in properly though, many people opt to plug the pipe on the inlet mani but this is actually wrong Explain please |
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Posted 9th Mar 2010 at 14:27
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eddy_gti6
Seasoned Pro  Location: Durham Registered: 20 Oct 2008 Posts: 8,716 Status: Offline |
Post #7
fit an oil catck tank from the pipe that comes from the Rocker cover to the throttle bodie________________________________________ Clicky: [url =http://www.306gti6.com]click here[/url] remove the space between [url & = |
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Posted 9th Mar 2010 at 14:36
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mark-house
Seasoned Pro Location: Bury St Edmunds Registered: 07 Apr 2009 Posts: 1,096 Status: Offline |
Post #8
Nice one Cheers Chaps________________________________________ Peugeot 306 GTi 6BMW 320 td compact M-sport 1967 Mini Cooper 1990 Jaguar XJR 4.0 |
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Posted 9th Mar 2010 at 17:36
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coskev
Seasoned Pro  Location: Oswestry Registered: 01 Nov 2009 Posts: 3,132 Status: Offline |
Post #9
chris with a pug wrote: matt306gti wrote: Highly likely.. make sure you plumb it in properly though, many people opt to plug the pipe on the inlet mani but this is actually wrong Explain please If you are fitting a catch can you still need the pipe to inlet connected,as it 'sucks' out the gasses etc from crank case  Otherwise you are just relying on the 'blow by' pressure passed piston rings to push gasses etc out,which on a NASP engine isn't alot A proper catch can/breather tank set up will be filtered inside,to seperate fluids(oil/condensation) from gasses before it gets sucked into inlet These are proper catch cans that work: http://www.saikoumichi.com/OCC_explanation.htm ________________________________________ Red GTB1756 powered Fabia VRS daily driver,LBSC Gti6 eater........Mac1 ZR R1 kit car build in progress. |
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Posted 10th Mar 2010 at 02:36
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allesclar
Seasoned Pro  Location: Sheffield Registered: 17 May 2009 Posts: 4,254 Status: Offline |
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Posted 10th Mar 2010 at 02:39
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coskev
Seasoned Pro Location: Oswestry Registered: 01 Nov 2009 Posts: 3,132 Status: Offline |
Post #11
allesclar wrote: Ha ha  How do you put up a clicky on this forum by the way?????? ________________________________________ Red GTB1756 powered Fabia VRS daily driver,LBSC Gti6 eater........Mac1 ZR R1 kit car build in progress. |
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Posted 10th Mar 2010 at 02:42
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welshpug!
Capt Pedantic Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,817 Status: Offline |
Post #12
you have to manually do the [url= stuff________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 10th Mar 2010 at 02:47
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coskev
Seasoned Pro Location: Oswestry Registered: 01 Nov 2009 Posts: 3,132 Status: Offline |
Post #13
welshpug! wrote: you have to manually do the [url= stuff Ok,ta Mei Means nowt to me I'm afraid.............. ________________________________________ Red GTB1756 powered Fabia VRS daily driver,LBSC Gti6 eater........Mac1 ZR R1 kit car build in progress. |
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Posted 10th Mar 2010 at 02:50
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