Re: [T3] Hard shifting automatic.

[Jens Vagelpohl <jens@type4.org>]

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On May 9, 2005, at 22:15, Jim Adney wrote:
> OTOH, even if the vac modulator is okay, many people don't realize  
> that they
> need to be adjusted after installation. Doing this takes some care  
> and a
> pressure gauge. If it's misadjusted, the shift speeds will be  
> offset, either
> high or low. I suppose it's also possible that the wrong VM is  
> installed.

I replaced the modulator once on my 412 wagon and it's true, it is  
supposed to be adjusted after installation. Back then I had a  
transmission that shifted too late no matter what I did, so I  
couldn't really make out much of a difference from my playing around  
with the adjusting screw.

A year or so later I had one of these "oh wow" moments that were  
mentioned before when I met another 412-owner at the VW show in  
Toledo/OH and drove his car. It was a revelation how smooth and  
timely it shifted. Another year after that my own transmission gave  
out on me, it would just kind of fall down into third and didn't want  
to come out of it anymore. I installed another transmission that I  
had bought a few years before that, knowing zilch about its actual  
condition, and it's been wonderful ever since.

The only problem I see when it's warm, and I assume this could be  
solved with some proper pressure gauges and adjustment TLC as well,  
is that sometimes the shift into second doesn't happen. It slips out  
of gear shortly, engine revving up, and then slides into third.

jens

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