Doesn't make sense to me when talking about 116 or 117 engins. I think that may work on some old VW's I have worked on. On the 116 or 117 engins the valve is not under the cam so you can't measure that. So I don't understand. The only way I can think to do it is with the MB guage, or make one yourself. I made one but I had a spare head with the cam, rockers, and adjustment shims still intact to use as a jig. There is a DIY somewhere on this site I think but I can't seem to find it right now. Maybe someone else can shed some light on this issue.

Paul

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84 500 SEL (307,xxx miles)