Re: [T3] vacuum advance

["Jim Adney" <jadney@vwtype3.org>]

On 26 Aug 00, at 15:47, bviss@thekeyboard.com wrote:

>     I think my vacuum advance mechanism is broken.  I connected a
> hose to it and sucked as hard as I could. The distributer plate
> WOULD move as far as it would go, but it wouldn't hold it for more
> than a second. I just kept sucking more and more air out of
> it(tasty stuff). 

It IS supposed to hold the vacuum, but a small leak won't really hurt 
much. It is a question of how big the leak was. Since it will only 
get worse you might as well replace it.

>     But if it is broken how on earth did I get 33 mpg a while
> back?  However city driving I don't get as good of milage as I
> should ~18 mpg, do these symptoms match?   If y'all think I need
> one, does anyone have a good one of these they could sell me? 

33 is awfully high. I doubt if that was a good number. More likely it 
was the result of a tailwind or not filling the tank completely.

The vac adv only comes into play during highway cruising, so you will 
never get it to do anything in your driveway.

18 mpg sounds awfully bad, so you should check other things as well, 
but replace the vac adv can anyway.

I may still have one of these in stock, if so it would be $35 
delivered, NOS. I'll be out of town for ~9 days so contact me then if 
you want one.

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