When I was doing regular wheel alignments on the vehicles with that type of linkage, we would compress the spring fully, then back off only enough to align the nearest cotter pin hole. Loosening the plug any more than that will introduce some slop into the steering.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
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