[Vwdiesel] Blow-by * Additives and Flus

Chuck Carnohan CCarnoha at itd.state.id.us
Wed Jun 30 14:27:27 EDT 2004

Roger- I have a 1.6 that the block breather is covered with a solid
plate- no hose of any kind and it has the same vacuum pump as in the pic
you provided below without the breather pipe outlet/inlet.  This is on
my mystery "Green Striped" engine.  Any comments?


-----Original Message-----
From: vwdiesel-bounces at vwfans.com [mailto:vwdiesel-bounces at vwfans.com]
On Behalf Of Roger Brown
Sent: Wednesday, June 30, 2004 11:23 AM
To: vwdiesel at vwfans.com
Subject: Re: [Vwdiesel] Blow-by * Additives and Flus

Ludovic Fremaux wrote:
> I am waiting for a compression tester to arrive next week. I will then

> measure compression on the cylinders and while the injectors are out I

> will try your recipe.
> I removed and cleaned the valve cover last week, it was not clogged. 
> Neither was the "Y shape" pipe going from the cover to the intake 
> manifold. I took out the intake manifold as well (being the original 
> Vanagon 175k mi I thought it could be the problem). There was a small 
> amount of tar into the 2 conducts but nothing that would restrain the 
> flow of blow-by. Cleaning the manifold didn't make much difference.
> I could not find any breather on the block. Where is it supposed to be

> located?

Usually right next the the oil filter flange:
(1.9D block/breather pictured)

Normally on the 1.6 blocks, the vacuum pump exhaust line is plumbed into
it.  I had trouble on mine with intermittent blowby over-pressuring the
pump and blowing out the plastic check valves randomly.  Adding a tee
fitting and running a line to the VC breather line cured that.

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