I valve adjusted my 617.950 turbo diesel engine and I'm getting clouds of white smoke. Before it wasn't as much. The valve clearance was very tight before I adjusted it. I was in a hurry and I think I had a little too much slop between the valve and the feeler guage I did not take extra care to make sure they were all dead on. I used probably about a 30% tolerance in my valve clearance due to my rushing. Could this cause the extra smoke?

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I would say yes. Go back in there and adjust them again.

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Not a good idea too do a sloppy job adjusting valves. Just like most jobs, do it right the first time or you get too do it again

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