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8/27/2003 7:06:22 PM, Russ wolfe <russella@prairieinet.net> wrote: >If he can get 200K out of a T-IV engine, I want to know what he is using >for valves and guides. Type 4's ate valves worse than our engines. >I wouldn't try to run an air cooled engine much over 75K without pulling >the heads. I've read up a bit on those engines, and the heads have to be pulled for valves & guides just like ours do. I seem to recall Jake admitting as much from time to time .. but somehow that part didn't get into this thread yet. Now, the issues with T4 valve *seats* has been pretty well figured out and cured, if you can get a shop to do them *right* instead of "how the factory says to do them". ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org