[Vwdiesel] Blow-by * Additives and Flush

[Roger Brown]

Harmon Seaver wrote:
> 
> On Wed, Jun 30, 2004 at 02:42:28AM -0400, LBaird119 at aol.com wrote:
> >   Not sure if any additives will help.  Possibly pulling the injectors and
> > letting
> > a little toluene, WD-40, even working a little oil and then a teaspoon of
> > water might loosen up carbon in the ring lands.  That would help if the
> > rings are stuck.  It may just be that the valve cover screen is plugged up
> > so that the blowby has no proper place to go.  Does it have the block
> > vent for the breather as well as the valve cover?  That can make all the
> > difference as well.  Oooooooh!  I need to do that to the Dasher!!!  That'd
> > help on it for sure!  Thanks!
> 
>    What do you mean by "block vent for the breather"? I don't think my '82
> vanagon has that, although I'm not sure what you mean. It just has a tube coming
> out of the valve cover.

On both my old '81 (1.6D) and new '82 (1.9D), I plumbed the block vent
line into the same breather tube that runs fromt he valve cover and into
the intake.  Normally the block vent was only plumbed to the vacuum pump
exhaust line.  I installed a pair of tee fittings, one at the pump and
one at the VC and connected hoses between the two.  You can see the
added line on the 1.9D engine below:
        http://www.4crawler.com/Diesel/Images/vw82_engine.jpg
On the 1.9D engine, I founf it had the fitting bolted to the block, but
the gasket behind it did not have the hole punched out.  I had been
getting some oil leaking out at various places and after venting the
block, that nearly stopped.  The 1.9 also has a TDI breather on top of
the VC and it had a fitting present which I tapped into for the extra
line, so did not need a tee fitting there.  Not sure what connects to
that on a TDI but it seems to be working now.

-- 
   Roger