OK,
Everything is nice and clean all lubricated. The airslide functions smoothly (I can press it down all the way without binding and catching). The Thermo chamber checked out OK (I did the boiling water test and the pin extends properly). The coolant circulation is good, the tower feels as hot as any part of the system.
There are 4 shims of various thikness inside the air slide held in place by a locking ring. I will take the two thinest ones out and put it all back together and try it.
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1994 E320 94k
1991 300TE 105K
1985 SD 184k
1983 SD 167K
1970 280SE 54K, sold
1981 SD 271k, sold
1984 300D 145K , sold
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