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  How to improve the berg...


Valve adjusting - Special Tool 
(by Chris Gilman)

To accurately measure valve clearance, go to your local Porsche dealer and purchase a 911 valve adjustment gauge, and several replacement blades. 911 valves are adjusted to 0.10mm, the same as Bergs, so the blades only come in this size. This cleverly shaped tool allows you to slip it into the space and feel the clearance. Be careful not to twist the tool and tear a blade, which is why you need several replacements, for the learning curve. There are also aftermarket tools available, but the handle tends to be larger, and will not fit into the space. Get the real thing, tool number P21 - see the photo

More information: please check regular valve adjusting procedure here


Special Porche 911 tool


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June 2001