.004 is actually not too tight. In the early 70's VW changed the valve lash from.004 to.006 to allow for longer intervals between adjustments. If you want to make it even easier, invest in a set of chromoly pushrods and you can set the valves to zero lash.
If you have a tendency to set them a bit loosely, shoot for the.004 mark. It's also a good idea to keep track of which valves are out of adjustment each time you check them, as this can let you know if you have an exhaust valve stretching on you.
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Monday, December 17th, 2007 AT 7:00 AM