Need center to center measurement for Tool 2079

[Bernard Littau]

I've posted this before, but it's still a goodie:

I went and got a massive torque wrench from Harbor Freight.  $140.  Here is
the link:
http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=3293

Or just search on the Harbor Freight site using keywords torque wrench.  I
did note that the link above is currently blank.

I've used this wrench for the Audi crank bolt and for various axle nuts on a
few cars.  It's an inexpensive Chinese torque wrench, but it does the job
both as breaker bar to get the nuts off and it puts them back on.  Yeah, I
know, don't use a torque wrench as a breaker bar.  Given I expect to use
this wrench about 30 times in my life, I'll risk it.  I don't do it with my
smaller torque wrenches.

You'll need a set of 3/4 sockets.  I use the sockets more as jigs to press
out bearings than as sockets, so they are kinda handy.

Another upside, I guess, is there is no math :-)

Best,

Bernard Littau
Woodinville, WA

On Fri, Mar 28, 2008 at 6:10 AM, Tony Hoffman <auditony at gmail.com> wrote:

> One other thing when talking about using a torque wrench. There is a
> general 20/80 ruse when working with them. That is, you want to use
> the range from 20% of it's capacity to 80% of it's capacity. If you go
> over or under that, they are a bit inaccurate. Torque wrenches are
> calibrated in the center of their adjustment range.
>
> Tony Hoffman
>
>
> On Sat, Mar 29, 2008 at 1:45 AM, George Selby <gselby4x4 at earthlink.net>
> wrote:>
> > Furthermore, I think the net result is you need 332 ft-lbs at the
> > crank bolt, which means calculations attempting to give 258 ft-lbs at
> > the crank would be wrong.  Tool 2079 gives some extra leverage which
> > means 258 ft-lbs at the tool will result in 332 ft-lbs at the crank
> > bolt.  I can't remember enough physics to remember how to multiply
> > torque with an extension.
> >
> > What I'm thinking that you're thinking right now is:  Tool 2079
> > assumes you can get a 258 ft-lb torque wrench.  You want to know how
> > much longer you need to make your 2079 tool (let's call it 2079a) so
> > that you can use your lower capacity torque wrench.
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