<VV> PG adjustment adventure continues

Frank DuVal corvairduval at cox.net
Fri Aug 3 08:05:18 EDT 2007


Have you adjusted the accelerator rod swivel where it attaches to the 
carb cross shaft? This affects upshift and downshift points.

Frank DuVal

Stephen Upham wrote:

>     I've checked the vacuum modulator at the fire wall using a vacuum  
> gauge.  It held 7Hg for about ten minutes before I manually released  
> it: vacuum module nixed as the culprit.  I then replaced the hose  
> connecting the metal line from the module to the balance tube using  
> 3/16" inch hose and screw type hose connectors for good measure.  I  
> then used a section of old bicycle tube cut to fit, to cover the  
> fresh air duct.  I manually inspected the balance tube for leaks.   
> Both carburetor connections are new and tight and there are no holes  
> in the metal tube.     After reinstalling the air cleaner assembly, I  
> checked the vacuum at the choke pull off hose using the vacuum  
> gauge.  I got a fluctuating reading that rapidly went between 7 and  
> 12 Hg.  As I manually increased the the rpm using the throttle cross  
> rod, the Hg reading rose, but still rapidly fluctuated between about  
> 10-14 Hg.  I have yet to check the PCV valve or the idle up solenoid.
>     I topped off the transmission fluid and took it for a spin.  No,  
> change.  It is still shifting into D at about 13-18 mph, there is no  
> kick down, and it is still kicking like a mule when it shifts from D  
> to L.   I also have a sticking parking brake, which I have  
> temporarily resolved by putting the car into reverse and stepping on  
> the brake - will get to that next.
>
> Stephen Upham
> Dallas, Texas
> Corvaireum //
>


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