Re: transmission leak--question

["Fred Munro" <munrof@isys.ca>]

Hi Phil;

    The OEM oil is synthetic, so unless the Redline is a different synthetic
compound, I would not expect it to cause the seals to leak. How much did you
add to your tranny? I put 3 litres of OEM in mine, a little more than it
called for but not enough to reach the filler hole. The level was still
about 3-4 mm below the hole. The Bentley says it is OK to fill to the level
of the filler hole, although the specified level is 7 mm below the hole. IMO
an additional 7 mm is not going to blow a seal. Is the tranny vent clear? If
it is plugged, you could be pressurizing the tranny as it heats up and the
weakest seal will leak to release the pressure. The seal is you just
replaced is, of course, no longer the weakest seal!

HTH

Fred Munro
'91 200q  269k km
-----Original Message-----
From: Phil & Judy Rose <pjrose@servtech.com>
To: quattro@coimbra.ans.net <quattro@coimbra.ans.net>
Date: Thursday, February 25, 1999 12:14 PM
Subject: transmission leak--question


>I recently replaced a leaking final-drive oil seal ('91 200q) and filled
>the tranny with Redline MT-90 (drain and fill). Very soon, a new leak
>appeared, which I think is from the front seal--although the clutch hasn't
>been affected (yet).
>
>Is it possible that the changover from OEM oil to Redline MT-90 (GL-4
>synthetic) has caused a seal to leak? I've heard that seal shrinkage (and
>leaks) will often happen when *engine* oil is changed from "dino" to synth,
>so...anyone have this happen with transmission seals when a new fluid
>(Redline?) is added?
>
>BTW, it _is_ possible (even likely) that I overfilled with the Redline oil.
>We'll know, when the car goes up on a lift and gets checked tomorrow
>morning.
>
>P.
>
>Phil Rose
>
>'91 200q Rochester, NY
>'89 100 716-244-4274
> pjrose@servtech.com
>
>