the_mary•11d agoProlific Poster

TIL my stubbornness about a torque wrench nearly cost me a head gasket job

I had a 6.7 Powerstroke head gasket replacement lined up last week and faced a choice: trust my old clicker wrench I've used for a decade, or buy a new digital one. The old one felt fine, but I dropped the $220 on a new digital model after a buddy said his was off by 15 foot-pounds. Using it, I found my old wrench was under-torquing the head bolts by almost 10 pounds on the final pass. That could have been a comeback in a month. Has anyone else had a simple tool check save a big job?

3 comments

3 Comments

victor_jones9911d ago

Honestly, that safety margin gets eaten up fast with heat cycles and vibration. Ten pounds on every bolt adds up to a lot of uneven clamping force across the whole head. It's not just about one bolt being a little loose, it's about the whole seal being uneven. That's how you get a slow leak or a failed gasket after a few thousand miles. A digital wrench is just taking the guesswork out for something that has to be perfect.

joel_butler7d ago

Yeah, I torqued mine to spec with a digital gauge last year and it's been solid. No more seeping oil from the corners.

-1

the_wren11d ago

Eh, 10 pounds on the final pass? That's not a ton... those things have a safety margin, right? Feels like you might have been fine either way.