Mass production by lazy assembly line workers- - - - -back then, mechanics were skilled tradesmen, not parts-swappers, and they were expected to have the skills to make engines work right. That kind of pride in one's work just doesn't exist any more.
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
Love your enemies and drive 'em nuts!