Jeeze Louize at $92 for replacement am thinkin put it on junkyard salvage list from engines w/ less than 200k on em. Does this governor bolt ever actually wear out?

Looks to narrow passage of fuel and thats probly good for economy. Gettin noisy idle on "uncle benz" my 116 at 262kmiles, and lousy fuel mileage by 240D standards. Now thinkin to replace this bolt will pay for itself in long run over the next 100k miles at least.