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BenW=> The distributor seemed to be backwards Type 1 distributor? Distributor drive installed incorrectly? Bottom line: if you can time it freely, ignore the rim mark and live with it until you can fix it *all*. => All the valves adjusted perfectly, except on => cylinder #2, ... it fell out of the head and the => valves were still too tight Both exhaust and intake, right? One thing -- you can feel when you're turning the screws under spring pressure -- those springs are *strong*. Was it like that? Well, first doublecheck that you have the right crank position, of course, but I don't really expect that's the problem. If you're positioned correctly, the procedure went right on the other three, and you're communicating the problem clearly, I can only think of a few things it might be. Push rods too long (way unlikely, but easily checked) Wrong rocker arms (ditto) Rocker assembly somehow installed wrong (hard to do and get this result, especially on only one cylinder -- make sure it's square to the head) Valve seats recessing bigtime (on both intake and exhaust, and only one cylinder, would be unusual; the springs would be obviously sticking farther out than the #4 springs) How long since the last adjustment? I had a situation a while ago on my Type 4 engine where the keeper splines broke on a couple of the valves and the valve stems slipped a little bit up into the springs. This made adjustment just about impossible because the springs were running into the rocker arms. You might check again that you're able to measure against the screws and you're not getting hung up on a spring or something. Now somebody else tell us what I missed. Steven Ayres, Prescott AZ '66 KG1600 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org