Hydraulic system seals

[PeterBergin at aol.com]

I have rebuilt my pump on my old 200 twice.  Bought a seal kit (cheep)  
from SJM)  did not do the shaft seal behind the pulley.  Need to get a  drive 
link socket and an impact wrench to get out the round plugs from the  pump. 
Kit is just a bunch of O-rings and seals. Not a hard job, less  than 2 hours 
the first time.  
 
Pete
 
 
In a message dated 12/29/2011 10:01:41 A.M. Central Standard Time,  
sajanesick at bellsouth.net writes:

I  recently lost a seal where the high pressure hose attaches to the 
hydraulic  pump.  According to the VagCat board drawings, there appears to be  
different size seals depending on which hose is attached.  I've matched  the 
size, but I am concerned about the O-Ring composition.  The seal that  blew 
out was a reddish orange seal versus the darker brown seal that is used  on 
the hose from the hydraulic reservoir.

Since it was over the  holidays, I just picked up a generic O-Ring 
assortment from Harbor Freight and  indeed found the right size that seems to be 
sealing with no apparent  leaks.  The O-Rings are black and package states that 
they are made  of  Nitrile and resistant to oil, grease, etc.

Does anyone have  any experience of using black Nitrile O-Rings within the 
hydraulic hoses  fittings?  I've been told that Audi often uses very 
specific O-Rings of  different color and material for different applications.  I 
have not gone  to the dealer yet, but I could still get by there today or 
tomorrow.  In  the meantime, I travel with wrenches, O-Ring assortment, towels 
and as much  Chf11s as I can get my hands on - just in case.

Also, I'm looking at  having the hydraulic pump rebuilt by LARES 
http://www.larescorp.com/index.html  up in Minnesota.  From what I can tell, they look 
like they know what  they are doing, but I thought I'd check to see  if 
anyone has any prior  experience with them.

Thanks,

- Steve Janesick
sajanesick at bellsouth.net
_______________________________________________
200q20v  mailing list     http://www.audifans.com/mailman/listinfo/200q20v