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On 20 Apr 2003 at 18:37, Greg Merritt wrote: > Not really putting 2 and 2 together, I decided to have a look > at the timing statically after I'd set it dynamically. I found I'd > timed it to maybe a degree or two before tdc when measured > statically. Then, of course, I realized that it's supposed to give > 30degrees max advance at the crank... and if I'd timed it to > 30degrees max advance, then it'd be at 0 degrees tdc when checked > statically. Duh. Bentley shows the AB as having 27-30 degrees of mech advance. That's their tolerance. This means that to get exactly 30 degrees of total advance you would need to set the idle timing to 0-3 deg BTDC. If you really want to be right at 30 deg you have to do the math and mark where 30 will be and time it there at max advance. ONLY THEN can you back up and mark the pulley as to where the idle setting should be. Once you have done this you can just set it again later at idle using this mark. Of course this only works as long as you stick to the same distributor. -- ******************************* Jim Adney, jadney@vwtype3.org Madison, Wisconsin, USA ******************************* ------------------------------------------------------------------- List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org