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-   -   remove both vac lines to time a 1980? (http://forums.pelicanparts.com/porsche-911-technical-forum/174750-remove-both-vac-lines-time-1980-a.html)

grahamkissack 07-27-2004 09:44 PM
remove both vac lines to time a 1980?
 
I'm just fine tuning and will be rechecking my timing. Bentley isn't specific...do I remove both vac lines from the distributor before timing to Z1 at about 950 rpm with the engine warm?

Thanks, Graham

dean 07-28-2004 05:54 AM
Yes I believe you do remove both lines. But I think you want to set total advance at 4k rpm. Then you check the idle advance.
Dean

john walker's workshop 07-28-2004 07:34 AM
both hoses off, turn down idle to 950, set timing to spec, reattach hoses and reset idle speed.


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