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On 24 Jun 2005 at 11:50, Toby Erkson wrote: > I can't find the thread where I thought I saw this but does the fan > pulley (and thus its notches) need to match (be compatible with) the > dizzy? For example, would the notches in my '72 pulley of 0¼, 5¼, etc. > be the same for a 009 dizzy? What I'm wondering is if the dizzy can > affect TDC by any internal advance/retard. You can use any pulley with any dizzy as long as the pulley comes with the marks you need. TDC is determined only by the engine internals. The dizzy can only change the timing relative to the internally determined TDC. -- Jim Adney jadney@vwtype3.org Madison, WI 53711-3054 USA ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~