[T3] Auto Tranny Tuning

[Jim Adney]

On 28 Oct 2013 at 21:50, Dave Hall wrote:

> The twin carb automatics had a balance pipe with a T for the vacuum
> modulatot.  I've got one somewhere, and the ends took 9mm hose to the carbs,
> bu the vacuum pipe was connected with 7mm hose (part 21
> http://home.clara.net/hallvw/type3/T3pbo/T3pb1-64.htm ). 

It's important to know that the dual carb ATs used a different vacuum 
modulator from the FI ATs. I think the correct VM will be hard to 
find in the US, as no carbed ATs were ever sold here.

You might as well try your luck with the VM you have. Each VM must be 
adjusted, and the adjustment instructions are in the Bentley manual. 
IIRC, look in the Lubrication & Maintenance chapter.

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Jim Adney, jadney at vwtype3.org
Madison, Wisconsin, USA
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