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On 15 Oct 2001, at 19:08, Herman Haustein wrote: > All stock, though may be from a later year - Dist. - 311 905 205 T ?! Not sure, but this sounds right. Does it have both mechanical and vacuum advance or just vacuum? > Let me clarify, I only read the graphs as vacuum to vacuum advance and then > in a general way. > About the vacuum at RPM I measure it by connecting my vacuum gauge to the > outlet (stock PDSIT's ) and watching the tach, as I rev it. Okay, I see. If your dist has only vacuum advance then it will have more of it that the units in the Bentley manual because they also have mechanical advance. You would expect to see something like 25 deg of crankshaft advance from your unit, while the FI dists only give about 10. [Note that the Bentley gives data in dist shaft RPM and degrees! This should have been made more clear in the book.] Check your vacuum advance to make sure that it holds vacuum and isn't leaking. - Jim Adney jadney@vwtype3.org Madison, WI 53711-3054 USA ------------------------------------------------------------------- Search old messages on the Web! Visit http://www.vwtype3.org/list/