[V8] Leaking Steering Rack - Switch to Mobil1 Synthetic ATF?

[Ed Kellock]

Is the rack itself leaking or possibly some other part of the system?  

The reason I started using Mobil-1 Syn ATF was to cause rubber to swell and
stop leaks.  My experience with that was good.

Since doing so a few years ago, I have added it to 3-4 V8s and my 91 Avant
and have had no pump issues.  In at least one of these cars, there's more
Mobil-1 than Pentosin, in the range of 75% or more.

Ed
 


-----Original Message-----
From: v8-bounces at audifans.com [mailto:v8-bounces at audifans.com] On Behalf Of
David M
Sent: Wednesday, May 05, 2010 12:10 PM
To: v8 at audifans.com
Subject: [V8] Leaking Steering Rack - Switch to Mobil1 Synthetic ATF?


I know that this is the farthest thing from a new topic.... but my steering
rack is leaking pretty badly and I've put a good penny into her lately so a
new one is not an option, as I'm looking at a timing belt change next year
anyway.

I've been scouring the internet and searching sites, especially this one, to
try and build a consensus for whether a flush and then switch to Mobil1
synthetic ATF is a good thing or disaster.  Every time I think I've got the
nerve to do it, I find a post that screams, "NO, NO, NO!" and I wimp out.
The pump was rebuilt a couple of years ago with upgraded hoses from our
friends in Washington and the last thing I need is to have the pump crap out
on me.

In the short term, I don't expect a miracle, but I'm hoping that the ATF
swells the seals a little to significantly slow the leak(s) down. And in the
long term it would be nice to just stick with the ATF and not deal with the
Pentosin anymore.

Anyone want to offer some words of encouragement and warm, fuzzy
experiences? -Dave 90 Pearl _______________________________________________
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