Tried a new torque wrench on a Cessna 172's cylinder base nuts

I picked up a digital torque wrench last month, thinking it would be more precise than my old clicker. Used it on an annual, setting it to 420 inch-pounds per the manual. The digital readout showed green, but when I double-checked with my old wrench, it hadn't actually reached torque. Turns out the new one needed a specific calibration routine I missed. Now I always verify with a second tool, digital or not. Anyone else run into calibration issues with newer digital gear?

2 comments

2 Comments

bailey.xena2d ago

Guess the manual forgot to mention the "actually works" calibration step.

mark_hunt2d ago

That "calibration step" is always a secret.