Or you might try Seafoam TransTune. When you say "slipping", do you mean
that engine RPMs increase without an increase in speed, or it delays
changing gear and winds out the engine?
I haven't paid attention myself to what gear the tranny goes into when
slowing into and accelerating out of a turn. At normal acceleration10 mph is
still first gear, but it may well be 2nd coming through a corner. If you can
determine that, or even duplicate the problem shifting manually it might
help you figure out what is going on (or out). If it's second gear then
perhaps an adjustment of the band would gain you some time, 'tho iirc it
shouldn't really need adjustment. If it's the brake band piston I believe
you can refurbish that readily with the tranny in the car, however I think
anything you do at this point is delaying the inevitable. I guess you have
to decide if an attempt at a minor repair is worth the cost in effort to
push back the rebuild.
If it's slipping (in either fashion) regularly in first while accelerating
in a straight line I would suspect the forward clutch.

On Tue, Oct 25, 2011 at 10:19 AM, Karl Wolz <wolzphoto@q.com> wrote:

> If you're resigned to having it rebuilt anyway, add a couple caps full of
> brake fluid.  Works by conditioning the rubber seals (makes them swell a
> bit).  Don't add more than that little bit.
>
> Karl Wolz
>
>
>
> |-----Original Message-----
> |From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com]
> |On Behalf Of Daniel Rotblatt
> |Sent: Tuesday, October 25, 2011 10:01 AM
> |To: vanagon@GERRY.VANAGON.COM
> |Subject: Re: vanagon trans slipping
> |
> |Eh...  I drained some ATF and added the same amount of Lucas
> |ATF stuff.  The trans is still slipping, maybe a slight bit
> |better, but that may be hopeful thinking.  Seems to slip
> |sometimes when slowly speeding up at low speeds - around 10
> |MPH - and sometimes more on turns (maybe right turns?).
> |General shifting seems slow as well, but I'm now worried about
> |it so I'm really focused on it.  Certainly not as smooth as my
> |'06 Tacoma.
> |
> |Dan
> |Los Angeles, CA
> |"Winky" the '85 Westy Weekender
> |
> |On Oct 25, 2011, at 9:33 AM, <mkriley@fuse.net> wrote:
> |
> |> did it work?
> |> mike
> |> <Re: vanagon trans slipping.eml>
> |-----
> |No virus found in this message.
> |Checked by AVG - www.avg.com
> |Version: 2012.0.1834 / Virus Database: 2092/4573 - Release
> |Date: 10/25/11
>

--
Cya,
Robert

'87 & '86 Auto GLs