oil seporater for crankcase breather

David Glubrecht daveglu at hotmail.com
Sat Jan 8 22:13:04 EST 2005


I know the seporater is built into the valve cover on most vehicles 
including most VW Audi's, however I do not see a breather hose on my 90 90 
20v.
Is it built in to the metal hose where the breather hooks to the block, or 
in the metal piece pressed into the block?


Some VWs had a plastic box with squiggly bits for oil vapor to 
collect/condense on, but no Audi model that I know of has one built-in, save 
racers/rally cars; Scott Justasson mentioned a car he crewed(crews?) for 
came with an 'official' Audi Sport air/oil separator.

On VW rabbits there is an oil seporater in the valve cover, on some cars 
this would get cloged with carbon (probably from poor oil change intervals) 
and then the car would push oil into the intake track.    I have fixed many 
cars with oil useage problems with this exact problem, and a common failure 
on some (caravan for one).  I am sure most I5 motors are exactly the same, 
however on my 20V I do not see any breather hose coming off of the valve 
cover, so I wonder where it is.





  David Glubrecht
  88 GT 3.4 TDC
  http://www.pelkie.com/mycars.htm




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