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On 27 Apr 2002, at 20:27, Simon Glen wrote: > I once had the same sort of problem with a 1969 Type36. > In fact, somebody had put several marks on the distributor > rim and I didn't know which one to believe. > > To find TDC for cylinder number one, I took the spark > plug out of number one, put a screw driver in the hole > and watched the screw driver move in and out as I turned > the engine via the generator/fan. At the same time, I watched > the four cams on the distributor shaft inside the distributor. > When the screw driver was pushed out furthest through the > plug hole I knew it was top dead centre but when this occured > when the distrubutor cam opened the contact breaker points > then I knew it was at the top dead centre of the compression > stroke and not the exhaust stroke. This doesn't work. It only tells you that you are either at TDC for #3 or at TDC for #1, it doesn't differentiate between the 2. Remember, no matter which TDC you're at, the points are about to give you a spark. - ******************************* Jim Adney, jadney@vwtype3.org Madison, Wisconsin, USA ******************************* ------------------------------------------------------------------- List info at http://www.vwtype3.org/list or mailto:help@vwtype3.org