'88 90q Whine

[Lino M. Valadas]

Sounds like a rear crankshaft seal leaking  vacuum.

As a quick test, with the engine idling on the driveway making that awful
noise, quickly remove the oil filler cap and screw it back on without
letting the engine stall. If the noise goes away, the rear seal is bad.

Lino


----- Original Message -----
From: "Chris Talley" <cmtalley at hotmail.com>
To: <quattro at audifans.com>
Sent: Monday, September 15, 2003 5:48 PM
Subject: '88 90q Whine


> [ Converted text/html to text/plain ]
>
> Hello Everyone,
>
> I have had some weirdness with my new to me 90q. Let me explain; my wife
comes
> home for lunch today I hear her pull up with a whine reminiscent of light
belt
> squeal. I have her drive the 4kq back to work so I can investigate.
>
>  The belt Tension/ Condition they are within specs.
> The whine does not change pitch with RPM,  road speed, or whether the
clutch
> is engaged or  not.
> It seems like the noise is coming form the bellhousing or steering rack.
>
>   I thought if it was the throw out bearing the noise would change or
> disappear if the clutch was disengaged. It did seem to make a slightly
unusual
> noise while going from reverse to first,   But nothing that scary
sounding. So
> I go to start it to investigate some more and much to my joy/dismay the
whine
> is gone. The fluid level for the rack was low so I added some but the
whine
> had stopped before then.
>
> Could the process of checking the fluid level maybe work the fluid to some
> place it had not been reaching?
>
> I am new to the 90 so any input would be appreciated.
>
> Thanks, Chris
>
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