Repairs

[SmartWombat]

To fix a racing gearbox, you need a mechanic ... with a hammer.
But as well as choosing the orange hammer, he needs to know where to hit it, and how hard.
That's where the skill is

[Photo-John]

Hammer = gentle persuader

[Jimmy B]

Hammer = swinging press
I can smell the gear lube from here.
Jimmy B

[hminx]

Looks like skilled use of the knockometer

[belongus3]

As said before...u can smell the oil from here. Hammer = my way or the highway )