hard start issue+ need steering rack

[PeterBergin at aol.com]

Does tractor hydraulic fluid mix with Pentosin? If so what kind or weight  
did you buy.
Thanks again.
Pete
 
 
In a message dated 1/23/2011 6:53:25 P.M. Central Standard Time,  
b.benz at charter.net writes:

Reading  back on your symptoms, sounds like it only leaks when very  
cold. And  maybe leaks down a little over nite. If the latter,  
probably not the  rack return line.
Buy a gallon of much cheaper tractor hydraulic fluid for  use until  
you resolve the problem, I’ve been using it in my PS for  10 years  
now. Put a full bottle of engine or AT stop leak in the  fluid, might  
restore that seal. Do when hot and not leaking. Nothing  to loose!

Bernie

On Jan 23, 2011, at 4:30 PM,  PeterBergin at aol.com wrote:

> It may be, I will check it  tomorrow.  I know when I have shut the  
> car off after a  drive and checked the level, than checked after it  
> sat  overnight the reservoir was about 1/2 lower.  I assumed it was   
> due to fluid contraction after going to below zero.
>
>  Thanks again Bernie,
> Pete
>
> In a message dated 1/23/2011  5:16:56 P.M. Central Standard Time,  
> b.benz at charter.net  writes:
> Well that’s pretty definite! And I haven’t been in that area  for  
> quite some time so don’t recall just how far the valve body  extends  
> thru the fire wall.
> Check your rack return line  / hose to the reservoir for blockage.  
> Maybe disconnect from the  reservoir and run into a can.
> If not blocked, this seal, from your  description, should be leaking  
> from reservoir head with or  without engine running or steering input.
>
>  Bernie
>
>
> On Jan 23, 2011, at 2:47 PM,  PeterBergin at aol.com wrote:
>
>> That's what I hoped, however I  can see it bubbling out of the  
>> shaft and dripping inside  the fire wall.
>>   No drips under the car. and everything  looks dry. under the hood.
>> Thanks, Pete
>>
>> In  a message dated 1/23/2011 4:44:50 P.M. Central Standard Time,   
>> b.benz at charter.net writes:
>> If the rack’s input shaft  seal were leaking (or a hose or hose
>> connector to the valve body)  the fluid would just run down the rack’s
>> valve body and drip to  the ground, outside of the fire wall. More
>> likely you have a leak  in your replacement hydraulic power brake
>> booster dripping down  onto the steering shaft.
>>
>>  Bernie
>>
>> On Jan 23, 2011, at 2:27 PM,  PeterBergin at aol.com wrote:
>>
>> > Bernie, this is a  strange one.  Had a leak at the brake booster
>> > (lots of  green gold under the carpet).  Would usually leak shortly
>>  > after start up on cold mornings.  Bought a used one from Force  5
>> > and had Anderson Motor sports install it (great Audi shop  near
>> > Minneapolis).  When it would leak, it would empty  its self quickly,
>> > no puddle under the car and everything  under the hood dry.
>> >
>> > Pick up the car and  drove for two days and the same symptom again,
>> > looked under  the dash with the motor running and could hear a
>> > gurgling  noise and could see Pentosin leaking inside the fire wall
>> >  from the steering shaft.  Leaked until reservoir empty and no
>>  > steering or brakes.  Filled up went for a drive, no leak until  I
>> > started the car the next morning (very cold  again).
>> >
>> > Some one told me the problem might  be that I have a not OEM made
>> > high pressure hose feeding the  rack and it did not have the
>> > pressure reducer in the  hose.  Never heard of that before and I
>> > have had the  hose for at least 5 years.  Have rebuilt the pump
>> > twice,  put not for a long time.  Have gone through 6 cans of green
>>  > gold between the two leaks.
>> >
>> > I am  puzzled,  wonder if I have a problem with the reservoir  return
>> > line?
>> >
>> > Still  looking  for answers before I put big $$$ into a rack.   This
>> > rack was a rebuilt short rack (what ever that means)  that I bought
>> > from Blau and installed as a preventive measure  when I did the
>> > clutch at 160k, have 239k on the clock  now.
>> >
>> > Any further input would be  appreciated.
>> >
>> > Pete
>>  >
>> > In a message dated 1/23/2011 4:11:12 P.M. Central  Standard Time,
>> > b.benz at charter.net writes:
>> >  I’m intrigued that you say that your rack is leaking “at the   
>> steering
>> > column“ input shaft seal! Never seen  nor heard of that!
>> > Neither the input nor output shaft seals  of the valve body are  
>> under
>> > pressure, just  reservoir return head pressure.
>> > If you are absolutely certain  that your leak is one of these seals
>> > and not the high  pressure rod seal, the latter would show fluid at
>> > the center  bellows not the valve body, I’d add a bit of engine or
>> > auto  tranny snake oil to the PS reservoir and drive the SOB for 1K
>> >  miles.
>> > Try this first, because the PITA is the R&R, not  the rack overhaul.
>> >
>> > I’ve overhauled 3 of  these ZF racks and believe that they are
>> > absolutely bullet  proof excepting for the hard plastic (read cheap)
>> > high  pressure rod seal. The last time, redesigning and replacing  
>>  this
>> > seal with an elastomeric quad ring with nylon back up  ring.  Going
>> > strong after >100K.
>>  >
>> > Bernie
>> >
>> >
>>  > On Jan 22, 2011, at 6:16 AM, PeterBergin at aol.com wrote:
>> >  >
>> > > PS, any one know where I can get a good deal on a  rebuilt  
>> steering
>> > > rack,
>>  > > mine is leaking at the steering column.
>> >  >
>> > > Pete
>> > >
>> >  >
>> >
>> >  _______________________________________________
>> > 200q20v  mailing list      http://www.audifans.com/mailman/listinfo/
>> >  200q20v
>>
>>  _______________________________________________
>> 200q20v mailing  list     http://www.audifans.com/mailman/listinfo/ 
>>  200q20v
>
>  =

_______________________________________________
200q20v mailing  list      http://www.audifans.com/mailman/listinfo/200q20v