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Re: [T3] Kickdown switch help


On 17 Jul 2004 at 14:12, Daniel Baum wrote:

> I think I can now answer my own question, after having messed with it 
> some more. 

I think you're on the right track. Here is how it should work.

As you press down on the pedal the bell crank will turn, opening the carbs. At 
some point the carbs will be completely open and part of the bell crank will 
run into a stop that prevents the linkage from trying to open the carbs any 
more.

At this point, the operating tab that actuates the kickdown switch should be 
approx. 1mm away from the kickdown switch lever.

After this point, you can still advance the second part of the bell crank, but 
increased force is required to overcome the spring between the 2 bell crank 
halves. Note that beyond this point there is NO further opening of the carbs, 
but at some point the switch clicks closed and the kickdown solenoid in the AT 
is actuated. You can set all this up with the engine off but the ignition on 
(disconnect the points wire to prevent damage to the points and coil) and then 
you can hear the kickdown solenoid snap in if everything's working.

Up to this point you didn't need to pay ANY attention to the accel cable 
adjustment, but eventually you should go to the driver's seat and press down 
from there to make sure that you have enough pedal travel to get to the 
kickdown position. I often find that I don't, which means that I need to 
tighten up the cable.

-- 
*******************************
Jim Adney, jadney@vwtype3.org
Madison, Wisconsin, USA
*******************************

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