new to Audi, new to the list

[Livolsi, Stephane]

Hi Drew, and welcome to the club.  I have dealt with both of the issues
you describe (on my 86 5000 TQ and my 88 5000 TQ Avant)

1)  In my experience, the after run pump came on very frequently during
the summer.  Anytime I drive long enough to get the engine up to normal
operating temp, the pump will come on after shutdown.  In the winter, it
doesn't come on as much. I would not bother with a used one.  The
problem with these pumps is that the nipples where the hoses connect are
plastic and over the years of heat cycling they become brittle and
break.  Then you either get coolant all over the place and possibly bits
of plastic running through your cooling system which cannot be good for
your pump or coolant flow.

2) Ah, yes, the hydraulic pump and the requisite pentosin hydraulic
fluid....  My 86 came with the seive option on the hydraulic system.  I
managed to stop the leaks for a while with some Can Tire mineral oil
transmission leak stopper.  These systems are designed to use only
mineral hydraulic oil, which is very expensive and sometimes difficult
to obtain.  Many listers, including myself, have done research on viable
options and you won't find 2 people who agree on the suitability of
these options.  You should do a search of the archives and decide for
yourself.  Whatever you do, don't post your opinion on the list or you
will start another war ...:)  just kidding of course, civilized debate
is always good.  I finally replaced my pump with the good one out of the
1984 5000 turbo that I parted out and I filled my system with automatic
transmission fluid.  Did this over a year ago and the system is very dry
(outside).  I don't necessarily recommend that you do this as I don't
know about the long term effects of using the tranny fluid.  My research
convinced me that it was close enough to perform ok, but it may be
accelerating wear in the pump and rack.  As I understand it, the pumps
can be rebuilt, but people have had mixed results according to posts on
the list.  I think the most important thing is to make sure that your
car has the proper mineral hydraulic oil, and not generic 'power
steering fluid'.

Welcome to the club and hope you enjoy your car.

Oh, and by the way, if you hear from Tom Chudzinski, ignore him.  He
lurks on the list and sends nasty, nasty emails to new posters when they
ask for help.  I guess every family has it's black sheep....

Stephane
Williams Lake, BC

> -----Original Message-----
> From: Drew MacPherson [mailto:drew at scirocco.cs.uoguelph.ca] 
> Sent: February 27, 2004 8:29 AM
> To: quattro at audifans.com
> Subject: new to Audi, new to the list
> 
> 
> 
> Greetings to all.  I recently acquired an 89 200 Turbo 
> Quattro Avant.  The 
> car has a few mechanical issues, so far nothing major, and 
> the body and 
> interior are in fantastic shape.
> 
> My goal is to have a nice reliable "family" car for my wife 
> to drive.  
> The Bentley factory service manuals are en route as I type 
> this, and I'm engaged in the process of clearing Volkswagens 
> off the shop floor so I can begin to work on this substantial 
> hunk of German steel.
> 
> I have two specific questions that arise from my cursory 
> examination of 
> the engine bay and/or the history of the car provided to me when I 
> purchased it.
> 
> 1) the after-run coolant pump has been "deleted" - I'm 
> guessing because it 
> may have developed a coolant leak.  I understand that this 
> pump circulates 
> coolant after shutdown in conjunction with the cooling fan to 
> cool the 
> waterjacket and the (water-cooled) turbo.  How frequently does the 
> afterun cooling system operate - is it only after "spirited" 
> driving with 
> hot ambient temperatures, or is it pretty much any time the 
> engine has 
> been heated to operating temperature and the ambient 
> temperatures are 70F 
> or greater?  Is there a good (read: inexpensive) source for 
> these pumps?  
> I do not have the old one, so rebuilding is not an option.  
> My immediate 
> area is (painfully) devoid of any Audi parts cars of this 
> vintage, however 
> I may be able to find something a little further afield.
> 
> 2) the hydraulic pump is leaking - in persuing the archives 
> I've learned that this is not uncommon.  There is a rebuild 
> kit (or a few o-rings and a seal, anyways) available from the 
> dealer for around $50 CDN.  Has anyone successfully rebuilt 
> their hydraulic pump?  I understand the procedure is detailed 
> in the Bentley (which I hope to have by the first of the week)  
> but I would appreciate any advice based on personal 
> experience that can be offered, as the alternative is a $250 
> CDN rebuilt unit.
> 
> Thanks in advance for any advice/input offered.
> 
> Drew
> 
> 
> -- 
> ============================================
> 84 Wolfsburg Edition TurboDiesel Scirocco
> 	http://scirocco.cs.uoguelph.ca/gtd
> 89 Audi 200 Turbo Quattro Avant
> 99 A3 Jetta TDI
> ============================================
> 
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