You can augment that by stuffing the end of the screwdriver into a length of rubber hose; you get the same effect, without having to stick your face 4 inches from the reciprocating assembly.
Or you can use a long screwdriver.
That's what real mechanics do.
Or you can evacuate the inside of your head and create a parallel universe in there with the end of a screwdriver as the point source in the middle, connected to the car via 60,000 feet of tram cable and examine the engine while holding the giraffe and reciting from memory the verse contents of the Egyptian edition of "Lord of the Rings".
That's what surreal mechanics do.