MARKY46 Posted November 7, 2008 Report Share Posted November 7, 2008 Hi folksHow exactly does the oil breather pipe remove from the crankcase?? Busy doing the timing belt and water pump and noticed the familiar gunk in the hose when I removed it form the air filter housing. Also noticed that the pipe seems to have sucked in on itself so I'm going to replace it. Didn't get good chance to have a look at how it connects to the crank case but I couldn't see any noticable clamps or clips holding it on. Does it just push on or is it held in some other way??Thanks in advance for your help folks... Quote Link to comment Share on other sites More sharing options...
MARKY46 Posted November 7, 2008 Author Report Share Posted November 7, 2008 Forgot to mention, it's a 1.4S Lupo I'm working on at the moment..... Quote Link to comment Share on other sites More sharing options...
andyp Posted November 7, 2008 Report Share Posted November 7, 2008 if you look down the back of the engine, you will see a box of where it connects to, get a flat headed screwdriver and push the catch in to release it then just pull it off to replace Quote Link to comment Share on other sites More sharing options...
Mitchell Posted November 7, 2008 Report Share Posted November 7, 2008 the above is for the pipe only, the box is held on by 3 allen bolts best done from underneath looking upover. Quote Link to comment Share on other sites More sharing options...
andyp Posted November 7, 2008 Report Share Posted November 7, 2008 oh sorry, i meant the bit where it joins onto... didnt realise theres another bit Quote Link to comment Share on other sites More sharing options...
THE GREEN MACHINE Posted November 11, 2008 Report Share Posted November 11, 2008 (edited) hey mate the only thing the breather pipe is attacthed to is the air filter housing which is on the top of the engine and the one way vavle which is at the bottom of the engine.but if your going to do it properly i would take off the one way valve off also and give it a real good clean n its only 3 bolts to take it off oh and change the breather pipe i wouldnt recomend resusing the pipe as it has changed shape because it will breath aswellafter that you throttle response should be alot better Edited November 11, 2008 by THE GREEN MACHINE Quote Link to comment Share on other sites More sharing options...
billstein9 Posted March 9, 2009 Report Share Posted March 9, 2009 hey mate the only thing the breather pipe is attacthed to is the air filter housing which is on the top of the engine and the one way vavle which is at the bottom of the engine.but if your going to do it properly i would take off the one way valve off also and give it a real good clean n its only 3 bolts to take it off oh and change the breather pipe i wouldnt recomend resusing the pipe as it has changed shape because it will breath aswellafter that you throttle response should be alot betterif i use an oil flush will this clean the one way valve or do i have to remove it to clean it. Quote Link to comment Share on other sites More sharing options...
Defcon5 Posted March 9, 2009 Report Share Posted March 9, 2009 What is it actually there for? Quote Link to comment Share on other sites More sharing options...
Kavedog Posted March 9, 2009 Report Share Posted March 9, 2009 (edited) To relieve any pressure build up in the bottom end. Its a cheap and nasty hack by manufacturers to plumb the bottom end into the intake ducting, so the vaccum of the engine itself (via the inlet manifold) sucks any pressure out of the bottom end. This inevitably means the pipe and intake track gets caked in oil as the oil and residue gets pulled into the pipe and intake. This is why some remove the plumbing into the intake track and use a custom catch can of some kind. Edited March 9, 2009 by Kavedog Quote Link to comment Share on other sites More sharing options...
Defcon5 Posted March 9, 2009 Report Share Posted March 9, 2009 Do all cars have them then? Cant say Ive ever noticed one before we got the Lupos Quote Link to comment Share on other sites More sharing options...
Niche Posted March 10, 2009 Report Share Posted March 10, 2009 (edited) VW's pre 2000-2005 had them.On the newer VW's after 2000-2005 they are directly routed into the inlet manifold so oil doesn't clog up the airbox, air filter and throttle body. The system itself has been revised because I've noticed that clear water seems to treacle out the exhaust where as the older VW's just chuck out dirty oil. Edited March 10, 2009 by Niche Quote Link to comment Share on other sites More sharing options...
SC02 FFF Posted May 8, 2009 Report Share Posted May 8, 2009 (edited) one way valveis this the box the breather pipe connects too with the allen key bits?? if so, if this is clogged could it be causeing my :Long Term Fuel Trim Additive Air Bank 1: Range 1: Systemtoo leanmain Cat effiency bank 1 below threshold Edited May 8, 2009 by SC02 FFF Quote Link to comment Share on other sites More sharing options...
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