Oil Leak from Crankcase Breather Hose

Rave Racer Ravewar at home.com
Sun Jun 10 14:58:37 EDT 2001

        Well, when I was driving my 16V Jetta to Florida, I noticed the same
thing.  On getting some advice from my VW specialist (NOT the dealer), he
said that it was the PVC valve and had no real importance other then to
evacuate fumes from the crank case back into the intake to be reburnt for
pollution control (no importance, unless you're a tree huggin hippie that
is).  Seeing as it had no real function, I pullled the hose off the airbox,
and bought a small paint can that I attached just behind the front grill,
and jammed the PVC hose into the hole in the top.
        I had a very noticable increase in low end power.  My guess is that
it was due to having less uncombustable gases in the intake.
        I did have to put a bottle of oil in after every 4 fillups though,
and had to empty out the paint can every 1500 KM or so.  I drove the car
like that for over a year.

>     I have noticed ever since the boost has been on that there is a some
> leaking around the crank breather hose port on the block.  I sniffed
> the web and noticed on SJM's site that the 20v has a special valve the
> restricts how much vacuum goes through to the crankcase breather hose.
> the boost is on it sucks the oily fumey mess up into the breather hose, my
> engine never came with any restrictor valve of any kind.  Could the new
> boost be sucking oil up and out?  Bad connection at the breather port,
> hose?  Something worse?
>     I have yet to check the airflow plate to see if there is any oily mess
> there.  When I did the conversion I had to do a tiny bit of cleaning,
> was a tiny bit of carbon crud and oily yuck on the plate and surrounding
> area, not much at all though.
> TIA!
> Alexander van Gerbig -- '88 80
> The Audi  80 Pages-----------------
> http://surf.to/the80pages.com
> North Ferrisburg, VT 05473

Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.256 / Virus Database: 129 - Release Date: 5/31/01

More information about the quattro mailing list