82 300SD bad valve

I have an 82 300SD with rebuilt engine by the best in Cincinnati. It has run fine for more than 2 years and went bad 2 months ago. last week a valve adjustment found a valve in # 2 that was extremely difficult to get loose to
be adjusted. My mechanic did succed but it has very low compression, barely contributes and sounds like it is missing [which it is and had been for 2 months]. There is no fuel in the oil so it seems there is no leak through the piston/rings itself. We think a valve guide but do not know and I am not excited about taking off the head to find out more. Any suggestion? The body is rusty and seems not to be worth restoration [classic as it may well be], 245K miles.
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the industrial system is stressed to the danger point and has proved itself to be a failure in the eyes of most people. Suppose for example that some "green" party should win control of the United States Congress in an election. In order to avoid betraying or watering down their own ideology they would have to take vigorous measures to turn economic growth into economic shrinkage. To the average man the results would appear disastrous: There would be massive unemployment, shortages of commodities, etc. Even if the grosser ill effects could be avoided through superhumanly skillful management, still people would have to begin giving up the luxuries to which they have become addicted. Dissatisfaction would grow, the "green" party would be voted out of of fice and the revolutionaries would have suffered a severe setback. For this reason the revolutionaries should not try to acquire political power until the system has gotten itself into such a mess that any hardships will be seen as resulting from the failures of the industrial system itself and not from the policies of the revolutionaries. The revolution against technology will probably have to be a revolution by outsiders, a revolution from below and not from above. 195. The revolution must be international and worldwide. It cannot be carried out on a nation-by-nation basis. Whenever
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Replace the adjuster then.
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