New P/S High Pressure hose rebuild problems...kinda long...

[Peter Golledge]

Shawn,

I really doubt that the rebuilt hose could cause this much grief.  I have a
couple of rebuilt hoses on two different 200Qs with no issues other than
noise in the one where I forgot to put the damper in.  After a pump rebuild
I did get leaks in just about every hose though.... new seals == good
pressure == leaks. :-)

I assume you checked/cleaned all of the strainers on the banjo bolts?  Did
you check
the strainer in the tank for junk?

Regards
--
Peter Golledge


----- Original Message -----
From: "Shawn Head" <s4qtro at bellsouth.net>
To: <v8 at audifans.com>; <quattro at audifans.com>
Sent: Saturday, April 12, 2003 10:18 PM
Subject: New P/S High Pressure hose rebuild problems...kinda long...


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> Just had the high pressure hose rebuilt by aeroquip here in orlando.
> They refitted a new hose with the old fittings.  The guy who did it has
> been working on p/s and other hydraulic systems for 20 years (so he
> said), and it worked great on the first drive.  Before you ask, yes the
> silencer is in, however it was a very snug fit on the rebuild end, and
> yes we did prime the pump by raising the front end off the ground and
> cycling the pump by turning point to point repeatedly (a good 3 min
> straight).
>
> This was the same day (Wednesday) that we found the Kostal connector
> that wasn't plugged in at the center console that powered the fr and
> rear cigarette lighters, rear seat heaters, and the S E M transmission
> switch.
>
> Put the car back down, connected the VAG-COM and went out for a test
> drive.  The car drove great, the best that it has since I got it.  The
> new version of the VAG-COM software has a VAG-Scope feature that allows
> you to see in a real time graph any of the measuring block values at a
> time.  This allows you to see the patterns, and or spikes that the
> values make.  The one that we were looking at was the O2 sensor value
> which is supposed to range between 128 and 134, and it DID!  It was a
> dead on Sine curve around 130.  The car was no longer stuck in sport
> mode  and all was well.  No stalling problem or RPM drops.
>
> Then on Thursday I went out to take care of some errands and the car was
> acting up again.  It stalled in traffic coming to a stop and the p/s was
> creating so much cavitation that it began shaking the car when I would
> accelerate and turn the wheel.  I parked and raised the RPM's to around
> 1.5K and turned the wheel repeatedly and developed a VIOLENT shaking.
> So much that you could feel it throughout the entire car.
>
> What is the problem??? Is the Internal Diameter (ID) too small causing
> increased pressure and/or too much restriction for the pump to pump
> through?  When turning the wheel you can hear the pump is not happy.
> Also it is as though the P/S pump is just gulping the power away from
> the engine as well.  Almost like it is working so hard to turn the pump
> it needs all that extra pressure.
>
> I removed the silencer tonight and the vibrating is WORSE!!!!
>
> HELP!!!
>
>
> Shawn Head
> '91 V8 Pearl/Nautica
>
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