What brand is/was your "new" slave cylinder? Failing that, any manufacturer
ID marks on it?

This has been talked about here and elsewhere, but maybe your "new" slave
cylinder had a poor quality seal(s)?

From what I've read and experienced, it's possible that the rubber on
*some* (few? Limited to certain "runs"?) new or rebuilt parts is of poor
quality. OTOH, and not suggesting you did this, but if one bled the clutch
hydraulics using the clutch pedal, and the fluid was really old and dirty
(image of fluid I got from my clutch line:  http://tinyurl.com/cwhuurs ),
could this harm the master or slave cyl. ? Maybe you initially used your
Motive power bleeder to bleed the "new" part.

Then again, factory assembly could be an issue. One of my rebuilt front
brake calipers leaked at join within 2 days.

Thanks,

Neil with fairly new clutch master cylinder, unknown spare slave cyl.,
and waiting with bated breath for *old* still OK slave cyl. to fail.    ;)

On Wed, Nov 30, 2011 at 6:54 AM, Don Hanson <dhanson928@gmail.com> wrote:

 A week or so I posted with my clutch pedal (84  2.0liter inline 5-sp)
> having it's engagement 'migrate' down to the floorboards of my van, and
> then keep going so the cluctch would not release at all.  We figured "slave
> cylinder" and we were right.   I bled the slave with my Motive power
> bleeder...
>

>
>  So.....I bled the slave cylinder (new about one year ago....P.O.S!...)
> and the clutch returned to almost normal...for about 50 miles.
>  I ordered a replacement over the T-giving weekend.  Meantime, I needed
> the van, so I dug around and found my old spare one.  This was the one that
> came with the van, the one I replaced with new,

>
>  The clutch action is now excellent again...
>
>

--
Neil n

65 kb image Myford Ready For Assembly  http://tinyurl.com/64sx4rp

'81 VanaJetta 2.0 "Jaco"  http://tubaneil.googlepages.com/

Vanagon VAG Gas I4/VR Swap Google Group:

http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engines