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Model specific boards => Golf mk2 => Topic started by: Haribo! on 27 June 2006, 14:06

Title: 16v airbox change
Post by: Haribo! on 27 June 2006, 14:06
ive taken off my pipercross induction box and got myself a standard one with a vw air filter and then my car wouldnt start, and when it did it would just die, it runs now but i had to turn the idle srew thingy loads and its certainly not running smooth, the only thing thats missing is vacume hoses, heres some pics could anyone enlighten my as to what they go to and weather its whats causing the troublesome running

(http://img163.imageshack.us/img163/1643/270620060051tx.jpg)
(http://img46.imageshack.us/img46/3443/270620060042jf.jpg)

s anythign else likely to have been afected by this change like the timing or anything like that?
Title: Re: 16v airbox change
Post by: Veedub1989 on 27 June 2006, 14:13
you must have left one of the vacuum hoses off...too much air is getting in. check all the hoses are secure and there are no leaks. you shouldnt have to adjust the screw by much (2-4 turns at most) to idle correctly (~950 rpm).
Title: Re: 16v airbox change
Post by: Haribo! on 27 June 2006, 14:20
nah didnt take one off, because the pipercross didnt have any vacume hoses on it,  that one on top of the airbox never had one on....
Title: Re: 16v airbox change
Post by: Haribo! on 28 June 2006, 02:18
there was an airleak on that massive rubber thingy that clips to the top of the box, works fine now but my lovely gargle sound has gone, which is ok as i dont sound like a subaru now  :smiley: plus it idles and responds alot better and ide say its goes a little... maybe not quicker but definatly easier,

anyone know where those vacume hoses go?
Title: Re: 16v airbox change
Post by: rubjonny on 28 June 2006, 08:33
This any help?  Basically look for a blanked off vacuum hose and connect it up!
(http://www.moddin.net/images/temp/golf/16v.jpg)
Title: Re: 16v airbox change
Post by: Haribo! on 28 June 2006, 10:19
hmm, no actually, that airbox is different from mine, mine hasa vacume thingy on the side of the bottom part.......
Title: Re: 16v airbox change
Post by: rubjonny on 28 June 2006, 10:24
that bit just opens the warm air feed from the zaust manifold shroud, its a small solid plastic hose which joins between the top & bottom halves :)
Title: Re: 16v airbox change
Post by: Haribo! on 28 June 2006, 10:27
oh right,well i dont need that one then, whats the one on top of the airbox for.......the metal one
Title: Re: 16v airbox change
Post by: rubjonny on 28 June 2006, 10:33
according to the diagram its the 'Diaphragm pressure valve'
No idea what its for though  :grin:
Title: Re: 16v airbox change
Post by: Haribo! on 28 June 2006, 10:36
according to the diagram its the 'Diaphragm pressure valve'
No idea what its for though  :grin:

excuse me.... did i just read what that!!! there must be some mistake!!! you have no idea what something is for!!!!!!?????

holy crap, has hell frozen over!

 :smiley:
Title: Re: 16v airbox change
Post by: rubjonny on 28 June 2006, 10:42
'there are some things man was never meant to know'  :grin:
Title: Re: 16v airbox change
Post by: Haribo! on 28 June 2006, 10:58
whats the world coming too...?   does anyone know what its for?
Title: Re: 16v airbox change
Post by: Haribo! on 28 June 2006, 16:53
haha!! ok, it doesnt connect to anything!! it just really looks like it does, so everythings in place really, so why does my idle go up and down so much? mayve my C0?... does that sound right.....?
Title: Re: 16v airbox change
Post by: Godzilla on 28 June 2006, 18:56
I must start off by saying ive just pulled myself up from the chair as i passed out for a few seconds after reading that rubjonny didnt know where a part of a 16v engine went!!

Har!bo, I had to get my exhaust gases (whatever the tech' terms are for it!!) adjusted when i put my airbox on. Go to your local garage (as long as they have a pipe that they shove up your exhaust....ooh er missus!!) and bung them a tenner and get them to alter it. It will run soooo much better. My idle went to s~it when i put my airbox on after the Pipercross. Glad you have noticed performance differance. Im so glad i got shot of the Pipercross. Have you sold it?
Title: Re: 16v airbox change
Post by: Haribo! on 28 June 2006, 19:01
nah its sat in my porch, its covered in crap, its orange inside tho, but black outside, only thing i miss is the deep gargle it made, its more resonsive tho

Title: Re: 16v airbox change
Post by: jezza16v on 28 June 2006, 21:41
oh right,well i dont need that one then.

Maybe not, but you need to make sure that the pipe connection that originally went to it is blocked off or you'll have a vac leak which will upset the running.  :wink:
Title: Re: 16v airbox change
Post by: Haribo! on 28 June 2006, 23:11
ah really? so should i block off the vacume one and the one where the thick hot air pipe would go???
Title: Re: 16v airbox change
Post by: rubjonny on 28 June 2006, 23:19
just the upper one.  Or you could just run a vacuum hose between em, wont hurt ;)
Title: Re: 16v airbox change
Post by: Haribo! on 29 June 2006, 01:36
ey? the upper what? im confused now......
Title: Re: 16v airbox change
Post by: jezza16v on 29 June 2006, 07:05
ah really? so should i block off the vacume one and the one where the thick hot air pipe would go???
You deffo need to block off the vac connection that would have fed to the side of the airbox (or reconnect it properly) I'm not sure where it comes from and can't check on mine for you cos it was sold on Sunday  :cry:. You don't need to worry about blocking off where the the thick hot air pipe connects from the manifold; that just helps with engine 'warm up' in the winter. But you could get some ally tube from Halfords to reconnect it if you like, they do the right diameter but I cant remember what mm it is. If you want to do that you need to check that the cowl on the exhaust manifold is present to make the connection, they often rust badly and fall off!
Title: Re: 16v airbox change
Post by: rubjonny on 29 June 2006, 08:33
The upper hose connection in your second picture needs to be blanked off, or simply joinn it to the connection below it with a length of vacuum hose.
Title: Re: 16v airbox change
Post by: Haribo! on 29 June 2006, 11:00
the guy at vw breakers told me that nothing connects to that top one, that it isnt a vacume connection at all, just looks like one.....
Title: Re: 16v airbox change
Post by: Judderi on 29 June 2006, 11:52
Im affraid your man is wrong. It connects to the vacume pipe that comes off the back of the top inlet manifold on the back right. It connects to a little yellow round thing. This yellow round thing has a vac pipe coming off it which goes to the airbox and splits via a T and connects to both of your devices. Without it connected im pretty sure you get a poor idle and poor running.
Title: Re: 16v airbox change
Post by: Judderi on 29 June 2006, 11:56
This pic shows the bit im mean. Its part of the main vacum feed for the servo i think. Its circled in red, look close!  :grin: If your still not sure i may have more pics. Just let me know.

(http://i3.photobucket.com/albums/y68/judderi/DSC00113edit.jpg)

Title: Re: 16v airbox change
Post by: Haribo! on 29 June 2006, 14:56
ah i see, ill have a good look later then,  :smiley:
Title: Re: 16v airbox change
Post by: Haribo! on 29 June 2006, 17:24
right ok, ah ive found a blanked off thing but im stuck now, the only blanked off connection is one off two coming off the bottom of the part coming off the side of the inlet if that makes any sense? is that the one that connects to the top of the airbox or is everything in the wrong place?
Title: Re: 16v airbox change
Post by: Haribo! on 29 June 2006, 17:41
ok so i thought i felt arty
 in this work of art you can see my current set up, do i connect the two arrowed things together? is that what you mean? or is it set up wrong at the moment anyway?

(http://img507.imageshack.us/img507/1345/vacume0xu.jpg)
Title: Re: 16v airbox change
Post by: Godzilla on 30 June 2006, 22:10
I hope these 2 pics may help mate. Im not very good with running problems!! Anyway this is what i did to my vac hose


(http://i83.photobucket.com/albums/j281/16gtipaul/30062006338.jpg)


And this is the other bit...whatever it is!!

(http://i83.photobucket.com/albums/j281/16gtipaul/30062006341.jpg)
Title: Re: 16v airbox change
Post by: Godzilla on 30 June 2006, 22:14
S#it....i forgot to resize them!!

Lets try again.....here is my vac hose

(http://i83.photobucket.com/albums/j281/16gtipaul/30062006338.jpg)

And the other bit...

(http://i83.photobucket.com/albums/j281/16gtipaul/30062006341.jpg)
Title: Re: 16v airbox change
Post by: takethefifth on 01 July 2006, 03:28
When i put a K&N on i was left with a spare vacuum tube, just make sure none of them are open/unsealed. I assume there should be somewhere to plug it in on the standard airbox.... If not just make sure its sealed.  I did similar to 16vGTIPaul but stuck a load of blutac down the tube as a bung then taped over it like that!

If it is sealed and you still have problems then hmmmmm.....

Isn't that mystery metal thing the brake vacuum thingy magjiggy or is that something else?
Title: Re: 16v airbox change
Post by: Haribo! on 01 July 2006, 10:49
hangon im lost now, am i supposed to be sticking a vac pip on the metal thing on the airbox and then blanking off the other end?  shouldnt it connect to something?  i thought that pipe went to the inlet manifold?
Title: Re: 16v airbox change
Post by: rubjonny on 01 July 2006, 10:53
that pipe he has blanked off is what connects to the spare hose thats blanked off on your 16v :)
Title: Re: 16v airbox change
Post by: Haribo! on 01 July 2006, 11:21
ah lovely,

*adds finding a vacume pipe to my list of things to do to car*

ta  :smiley: