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AT mysteries revealed (was Re: [T3] AT deathmatch)


At 10:30 PM -0700 7/25/01, Greg Merritt wrote:

>Interestingly, I found
>that rod-like end of the cable, where it mounts to the transmission, is
>*bent*.

	O.k., so I managed to get the end of the cable pretty straight by
holding it on either side of the bend between the flats of the jaws of
adjustable wrenches, and bending it back toward straight.

	I found that the sleeve/nut combo is damaged, but not so much so
that it is unusable.  I don't think anything funky happened while I was
removing it; I don't think I would have been able to pivot it enough to
cause this sort of damage.  Here's a picture of the cracks in the pivot
housing -- anybody got an extra one they'd be willing to part with?

	http://vwtype3.org/cableguide.jpg

	The cable seems to move freely, so I think it's just fine.  I
removed the drain pan... it's missing one bolt entirely, a couple of bolts
don't have washers, and it's got one non-oem bolt.  (Anybody got a couple
of these bolts?)

	With the pan off, I had a look at the internal shifting lever
mechanism.  I was moving it back and forth, watching it work, when...
yikes! The internal and external levers can move independently!  Not Good.

	They can pivot independently maybe 15 or 20 degrees or so.  I could
see that if it was shifted into park, the little hook on the park mechanism
might hold the internal lever; when you tried to shift it out of park, the
exterior lever would likely move with the cable for that 15 degrees, while
the internal lever did not move.

	This would explain my weird "can't get out of park" problem.
Perhaps, when trying to shift out of park, the exterior lever would go
through that "dead" travel before moving the interior lever out of park at
all, and then catch a little bit -- enough to tell the tranny to go into
reverse, but not enough to disengage park.  This would serve to explain why
the car would get "locked" in place but be under load after having been in
park.

	O.k., so I've looked in Bentley (Automatic Transmission, page 28,
figure 10-25).  It looks like the lever shaft that passes from the exterior
to the interior of the tranny has flats where the interior lever mounts
onto it.  I'll remove the levers next, and see if there is wear on the
flats of the interior lever or the shaft, or if it seems to be designed
with a bit of play; maybe it just needs to have the interior lever
installation nut tightened down a bit more.

	Thanks for your help, folks!  If anybody has thoughts/reflections
on the above, or if you've got one of those little nut/sleeves, extra pan
bolts, or the accordian rubber cover that goes over the cable nut/sleeve,
please drop me a line.

Cheers,
-Greg


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