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Engine Specific Info and Questions => IDI Engine => Topic started by: stewardc on November 12, 2007, 07:08:34 am

Title: AAZ Crankcase vent
Post by: stewardc on November 12, 2007, 07:08:34 am
Would anyone have pics of the bottom of the vent that comes up and attaches to the valve cover vent? Is it simply a plate that I could make out of steel? I want to use braided stainless lines for the vents, but need details (mine is laid up for the winter and is 4 hours away......sigh)
Title: AAZ Crankcase vent
Post by: jimfoo on November 12, 2007, 07:25:47 am
Sorry, out of all my engine pics, I don't have one of that. Maybe later I can see if I can tell, although it is fairly well hidden on my car.
Title: Re: AAZ Crankcase vent
Post by: Vincent Waldon on November 12, 2007, 08:07:43 am
Quote from: "stewardc"
Would anyone have pics of the bottom of the vent that comes up and attaches to the valve cover vent? Is it simply a plate that I could make out of steel? I want to use braided stainless lines for the vents, but need details (mine is laid up for the winter and is 4 hours away......sigh)


Mine just happens to be in pieces... I'll get a couple pictures for you later today.
Title: Re: AAZ Crankcase vent
Post by: starrd on November 12, 2007, 10:37:04 am
Quote from: "stewardc"
Would anyone have pics of the bottom of the vent that comes up and attaches to the valve cover vent? Is it simply a plate that I could make out of steel? I want to use braided stainless lines for the vents, but need details (mine is laid up for the winter and is 4 hours away......sigh)


Here is a solution for a TDI 1Z which will fit:
Write-up here
http://forums.tdiclub.com/showthread.php?t=118821
and here
http://forums.tdiclub.com/showthread.php?t=132018

The AAZ style is better as it is a 2 piece - Ive never had a problem with it, but the one on my TDI is in need of repair.
Title: AAZ Crankcase vent
Post by: Vincent Waldon on November 12, 2007, 06:50:01 pm
(http://i197.photobucket.com/albums/aa85/vwaldon/AAZoilbreather.jpg)





Vince
Title: AAZ Crankcase vent
Post by: Black Smokin' Diesel on November 12, 2007, 08:47:39 pm
Can't you just use a block off plate like the 1.6td has?
Title: AAZ Crankcase vent
Post by: stewardc on November 13, 2007, 03:42:00 am
Thanks. I was just wondering if there's a reason that the pipe elbow on the plate is 70 degrees and not 90 degrees. Does it have to clear some obstruction or is it just so it will fit on the pipe easier???
Title: AAZ Crankcase vent
Post by: burn_your_money on November 13, 2007, 09:07:45 am
Where do you get your attachment to the block from Andrew? Early 1.5s? and 1.6s?
Title: AAZ Crankcase vent
Post by: Vincent Waldon on November 13, 2007, 09:36:34 am
Quote from: "stewardc"
Thanks. I was just wondering if there's a reason that the pipe elbow on the plate is 70 degrees and not 90 degrees. Does it have to clear some obstruction or is it just so it will fit on the pipe easier???


It's quite close to the oil filter flange and snakes thru the maze of coolant hoses as they go between the water pump, the oil cooler, and the metal line to the heater core.

I'll snap another picture of the flange bolted to the block tonight.
Title: AAZ Crankcase vent
Post by: andybnwc on November 13, 2007, 09:36:40 am
hi does this just fix with the two allen bolts ,does it have a seal because i have always had a slight oil leak from the bottom joining piece?
Title: AAZ Crankcase vent
Post by: Vincent Waldon on November 13, 2007, 09:37:20 am
Quote from: "andybnwc"
hi does this just fix with the two allen bolts ,does it have a seal because i have always had a slight oil leak from the bottom joining piece?


The flange has an o-ring against the block, and the union has an o-ring as well.
Title: AAZ Crankcase vent
Post by: andybnwc on November 13, 2007, 11:04:32 am
ok cool will oil leak everywhere when i remove it or only with engine running also mine is the single piece one any ideas where i can get the 2 piece in uk without dealer prices?
Title: AAZ Crankcase vent
Post by: stewardc on November 13, 2007, 11:12:43 am
Would anyone have an accurate drawing of the plate so I can make one ???
Title: AAZ Crankcase vent
Post by: Vincent Waldon on November 13, 2007, 09:56:35 pm
(http://i197.photobucket.com/albums/aa85/vwaldon/AAZ_flange.jpg)


Note that this engine has no head on it, so the upper coolant hose is not quite at the actual angle.


You might find, being plastic, that it's a cheap part to buy and then you have a real prototype in your hands.

On the other hand, yesterday just for yucks I asked the dealer what a 12 buck (from Worldpac) shift relay shaft was worth... he quoted me $170.
Title: AAZ Crankcase vent
Post by: burn_your_money on November 14, 2007, 06:46:35 am
Perfect thanks. I'll have to rig something up
Title: AAZ Crankcase vent
Post by: doc_oc on November 15, 2007, 12:14:18 pm
Anybody still making those flanges? Mine is leaking too.
Title: AAZ Crankcase vent
Post by: Vincent Waldon on November 15, 2007, 09:58:11 pm
Quote from: "doc_oc"
Anybody still making those flanges? Mine is leaking too.


It's probably the o-ring that is leaking... if VW doesn't have them a hardware store likely will.



Vince
Title: AAZ Crankcase vent
Post by: stewardc on November 16, 2007, 04:24:12 am
Quote from: "stewardc"
Would anyone have an accurate drawing of the plate so I can make one ???


Anyone at all ???
Title: AAZ Crankcase vent
Post by: stewardc on November 16, 2007, 04:30:52 am
Quote from: "libbybapa"
Quote from: "burn_your_money"
Where do you get your attachment to the block from Andrew? Early 1.5s? and 1.6s?


I have just taken the block off plate, drilled it, tapped it for pipe thread and installed a pipe to barb fitting.  The 1.6 oil separator has only 1 input and so it is a good idea to either use one of the later ones or install a tee to allow the block vent to enter prior to the oil separator.  This is easily accomplished on the vanagon (tilted 50°) by moving the separator on top of the block fitting with the tee up to the valve cover.  It would be a little more challenging on the golf/jetta.  On those, easier would be to get a later model separator.  

Andrew


So, there's the same opening on a 1.6? And is it blocked off by a steel plate ???
Title: AAZ Crankcase vent
Post by: stewardc on November 16, 2007, 06:56:54 am
Quote from: "libbybapa"
Yes, flat steel plate next to the oil filter flange held on by two allens.


Please excuse myignorance, but is it the same on the 1.9 AAZ as the 1.6???
Title: AAZ Crankcase vent
Post by: doc_oc on November 16, 2007, 09:38:21 am
Quote from: "stewardc"
Quote from: "stewardc"
Would anyone have an accurate drawing of the plate so I can make one ???


Anyone at all ???


Follow the first link on the first page. There is a drawing.
Title: AAZ Crankcase vent
Post by: stewardc on November 16, 2007, 01:09:28 pm
Quote from: "doc_oc"
Quote from: "stewardc"
Quote from: "stewardc"
Would anyone have an accurate drawing of the plate so I can make one ???


Anyone at all ???


Follow the first link on the first page. There is a drawing.


Yeah, I know, but it just gives me a pic the size of a postage stamp.
Title: AAZ Crankcase vent
Post by: andy2 on November 16, 2007, 05:57:01 pm
Quote from: "stewardc"
Quote from: "libbybapa"
Yes, flat steel plate next to the oil filter flange held on by two allens.


Please excuse myignorance, but is it the same on the 1.9 AAZ as the 1.6???



Yes,The plate from the 1.6 will fit on the 1.9 AAZ,1Z or AHU.
Title: AAZ Crankcase vent
Post by: Black Smokin' Diesel on November 17, 2007, 11:49:34 am
Quote from: "libbybapa"
Quote
Can't you just use a block off plate like the 1.6td has?


The added block vent is a very good upgrade to the 1.6.  It allows the flow of vapors from the block without fighting against the flow of oil back to the pan from the head.  The block vent will reduce the amount of oil mist into the intake.  I add the block vent to the 1.6s that I run.  I personally wouldn't disable the improvement on the later motors although one could.

Andrew


Thanks, that's something I'll look into upgrading next summer.
Title: AAZ Crankcase vent
Post by: stewardc on November 17, 2007, 12:01:35 pm
Would anyone have an accurate drawing of the plate so I can make one ???
Title: AAZ Crankcase vent
Post by: gldgti on November 18, 2007, 03:59:44 am
Quote from: "stewardc"
Would anyone have an accurate drawing of the plate so I can make one ???


the shape is simple, its a flat piece. if you cant find one, find a rabbit petrol (carbie car)fuel pump, its goes in the same hole, cos it runs off a cam on he intermediate shaft. it wouldn't be hard to measure the centres of the holes with some verniers then just sketch out a rough shape to cover the hole, it shouldnt be too hard.

the bolts are probably M6...