Post by Ben Halicki
I'm looking to buy a torque wrench over the next few days and was
wondering if you guys could give me a few tips on what to buy. I have
found one made by Norbar, which should handle anything between 8-60NM,
but wasn't sure if I should go 3/8 or 1/2"? It'll spend most of its
days tightening engine bolts. What do you guys use?
Any help would be greatly appreciated.
Thanks in advance,
Having spent much time setting and calibrating manual and power torque
tools at the plant, I've got a few ideas. Calibrating the technicians
hand adjustable wrenches has led me to the conclusion to stay away from
the expensive brand name that begins with an "S". They are almost
universally out of range and require frequent recalibration. The "M"
Brand seem to be the best for accuracy and repeatability. "C" brand are
also very good. (Surprised me) The very expensive German power tools are
extremely good but hard to set and only needed if you are doing
production. (We were, I had over 600 of these to check monthly).
Make sure you use torque wrenches that have the desired value near the
center of their range. (This means several wrenches for most automotive
uses) Torque wrenches are very inaccurate at the bottom and top of their
adjustment ranges. (Over 20%)
Beam type are more accurate but harder to use.
Clickers take some training to use correctly. (e.g.. SLOWLY pull to
torque, as it breaks over the set range if you are pulling hard, you can
over torque by 10-15 pound feet.) Never click twice, it only over torques.
Gopher 33 28 19N 112 01 49W
'77 CB750K '78 CB750K
'00 ZG1000 '96 Ducati 900SS
**********pull 'mychain' to reply***********
("I've abandoned the idea of trying to appear a normal, pleasant person.
I had to accept myself as I was, even if no one else could accept me.
For the rest of my life I would continue to say precisely the wrong
thing, touch people in the raw and be generally unpopular. I had a
natural gift for it" W. F. Temple)