No offense intended- - - -after 60-something years in the auto repair business and teaching the subject for 30+ of those years, some things that appear to be an obvious solution to me don't occur to others.
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!