[GTALUG] (very off topic) torque spec of impact wrench

[o1bigtenor]

On Fri, Nov 3, 2023 at 10:03 AM William Park via talk <talk at gtalug.org> wrote:
>
> This is what happened after getting 4 new brakes and 2 new calipers at
> the dealership.  They over-tightened it!

This would get me to take it back to said dealer with the instructions
to 'fix it' .

If they refuse there would be some repercussions!
I would escalate the problem through VW channels if necessary.

>
>      - I tried 12in pipe (it's all I have).  It slips, and I don't want
> to step on that.  Maybe longer pipe will work.

I was afraid you would not have something a couple feet long - - argh!!!!
Have some specific tools (read pipes/bits of tubing) that are stored as
tools for just this kind of use.

This kind of probelm should be the responsibility of the idiot outfit
that created
the problem not yours.
A good 1/2" air impact fed using a 5/16" id hose that not more than 15' from
the compressor should develop in the range of 450 to 500 + ft#s of
removal torque.
There are models (or at least used to be) that would develop up to 650 ftlbs.
(then the 3/4" was good for circa 800 ft lbs and the 1" (good one) for
up to 100 ftlbs.
That's for big truck and heavy equipment stuff - - - even then sometimes a good
snip with a 12# hammer would crack something that the impact couldn't - - but
those are some extreme measures!)

You could use a 6 or 8# hammer on your bar - - - warning bars can be bent.

HTH