Author Topic: Valve cover breather  (Read 5155 times)

April 15, 2008, 06:10:06 am

fastvicar

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Valve cover breather
« on: April 15, 2008, 06:10:06 am »
I changed my 1.6NA over to a turbo a couple months ago.  Still NA pump & valve cover, but no place to vent the valve cover into (simply vented into the NA manifold previously).  Since then I've been chasing a problem with excessive smoke coming out of the valve cover vent.  I've installed a check valve & breather cap, but it still throws out a large amount of oil mist.  What would the harm be in plugging the vent hole?
1981 Rabbit 1.6L TURBO!!  "The Whistle Pig"

Reply #1April 15, 2008, 07:04:10 am

zukgod1

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« Reply #1 on: April 15, 2008, 07:04:10 am »
Um ya, you dont want to be plugging that hole.

It will blow every seals on the engine.

If there isn't a place to attach it to the intake (and sounds like you have allot of blow by anyway so I wouldn't recommend that) you can just vent to the atmosphere, I have mine going to a catch can with a vent on the top then the other side goes down under the car just behind the cross member.
dan

99 Golf TDI (now CNG powered) , 82 TD Caddy

Reply #2April 15, 2008, 07:37:01 am

fastvicar

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« Reply #2 on: April 15, 2008, 07:37:01 am »
Quote from: "zukgod1"
It will blow every seals on the engine.


So it won't be much different than what I've got now?  :oops:

I'm currently venting it to atmosphere @ the cross member.  I've just never seen one throw up so much smoke.  It doesn't really change w/ rpm or boost, so I think it's just the cam whipping things into a frenzy.  Would one of those cam splash guards help a lot?  BFI is only asking $7 for one.
1981 Rabbit 1.6L TURBO!!  "The Whistle Pig"

Reply #3April 15, 2008, 08:51:24 am

fastvicar

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« Reply #3 on: April 15, 2008, 08:51:24 am »
My TDI had a puck unit.  Any idea on a part # for the IDI TD version?
1981 Rabbit 1.6L TURBO!!  "The Whistle Pig"

Reply #4April 15, 2008, 09:11:44 am

fastvicar

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« Reply #4 on: April 15, 2008, 09:11:44 am »
Nevermind.  World Impex carries them.  For $75.  There has to be a better (cheaper) way.
1981 Rabbit 1.6L TURBO!!  "The Whistle Pig"

Reply #5April 15, 2008, 10:14:15 am

DCC

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« Reply #5 on: April 15, 2008, 10:14:15 am »
Vw's breather valve (hockey puck) is reference # 076 129 101.

Should be somewhere in the 25USD range.

Reply #6April 15, 2008, 11:28:00 am

jimfoo

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« Reply #6 on: April 15, 2008, 11:28:00 am »
I think I may have one in the garage, although I want to look at it as I'm not positive it doesn't leak at the seam. I had hellacious blowby, so the oil on it could have been coming from the hoses or around the rubber VC bushing as well.
Jim
1966 Land-Rover 88" with 1.9 1Z which has been transformed to an M-TDI
TFO35 mechanically controlled VNT, IC , and 2.5" exhaust.
Driven daily

Reply #7April 16, 2008, 08:33:25 am

fastvicar

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« Reply #7 on: April 16, 2008, 08:33:25 am »
Quote from: "DCC"
Vw's breather valve (hockey puck) is reference # 076 129 101.

Should be somewhere in the 25USD range.


That's the one.  $74.17  Ouch.

jimfoo, if you do have one I'd take it even with leaks.  I have ways to make them seal.  ("Oh, you'll seal alright.  Seal......forever!!!")
1981 Rabbit 1.6L TURBO!!  "The Whistle Pig"

Reply #8April 16, 2008, 09:36:50 am

jimfoo

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« Reply #8 on: April 16, 2008, 09:36:50 am »
$10 + shipping, PM sent.
Jim
1966 Land-Rover 88" with 1.9 1Z which has been transformed to an M-TDI
TFO35 mechanically controlled VNT, IC , and 2.5" exhaust.
Driven daily

Reply #9April 16, 2008, 10:22:22 am

jimfoo

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« Reply #9 on: April 16, 2008, 10:22:22 am »
Mine has a different part number than the one posted above, 028 129 101.

Just to make sure, you want the breather pictured on the top right of the valve cover? Sorry but I don't have a better picture of it.
Jim
1966 Land-Rover 88" with 1.9 1Z which has been transformed to an M-TDI
TFO35 mechanically controlled VNT, IC , and 2.5" exhaust.
Driven daily

Reply #10April 16, 2008, 10:30:35 am

burn_your_money

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« Reply #10 on: April 16, 2008, 10:30:35 am »
yours is different Jim because you have 2 pipes going into it, the 1.6s only have 1. All you would have to do is block the one off
Tyler

Reply #11April 17, 2008, 04:57:59 am

fastvicar

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« Reply #11 on: April 17, 2008, 04:57:59 am »
I'll keep that in mind.

And that head sure is pretty!  Personally I would have gone with Deutz Green, but for your application your color choice is probably perfect.
1981 Rabbit 1.6L TURBO!!  "The Whistle Pig"

Reply #12April 17, 2008, 08:02:20 am

DCC

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« Reply #12 on: April 17, 2008, 08:02:20 am »
Quote from: "fastvicar"

That's the one.  $74.17  Ouch.

Well, here we call VW Stealwagen, but, have you tried asking for it in an authorized dealer?