[T3] Since I replaced the runner boots and all vacuum lines noticed

Jim Adney jadney at vwtype3.org
Thu Jun 6 08:10:11 PDT 2019

On 5 Jun 2019 at 19:23, Keith Park wrote:

> On a related note, has anyone ever come up with a way to adjust the flow
> in the heated AAR's they used on the Automatic's?  They used the T4 one on
> the auto's right?  I really need to raise the cold idle speed on the 2056
> but they dont look adjustable, even if I get creative.

Sounds like with larger displacement you need more idle enhancement. You 
could try putting 2 of our AARs in parallel, or see if you can find something 
similar from a larger engine to substitute for yours. Try something from 
Volvo, Saab, or BMW.

BTW, the Type 4 and Type 3 electrically heated AARs have different 
orientations for the I/O ports, but the bodies are the same, so they look like 
they are probably alike inside. There's no adjustment; it's just a matter of 
how big the passages are inside. They should both go from fully open to fully 
closed, although fully closed is never perfect, and it's always possible that 
yours is sticking and is not fully opening.  

It's common for these to stick, so that might be a good place for you to start 
looking. It's difficult to take these apart, and even harder to put them back 
together. Try soaking in a mixture of acetone and ATF.

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

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