I have a question. How important is accuracy on a Torque Wrench? I mean,
consistency seems more important to me. If you are torqueing your lug nuts
to 85 lbs, and the wrench is off a little, you still get all the lugs
torqued to an even setting that keeps you from warping rotors. I guess on
smaller items you may want to be a little more precise. I have a small
Husky wrench that does inch lbs.
I have a couple of torque wrenches. We took a socket and hooked them
together once and set them to the same setting. Then we put pressure on
them and they both clicked at almost the same time. So they are "close" for
sure.
I'l love to have a Snap-on model. I'm a real tool whore :-)
G-Man
> I have a question. How important is accuracy on a Torque Wrench?
Not *that* important, but...it depends on the application.
Most automotive fasteners of any importance have substantial built-in
safety factors. Some do not, such as cam bearing cap bolts. Those only
torque to seven foot pounds, a lot lower than many people are used to
working with. Overtorque those enough and big trouble can surface.
> I mean, consistency seems more important to me.
It is. Especially with stuff like head gaskets.
> If you are torqueing
> your lug nuts to 85 lbs, and the wrench is off a little, you still get
> all the lugs torqued to an even setting that keeps you from warping
> rotors.
Uneven nut torque is not nearly as significant a factor for brake
vibration as some other things.
> I guess on smaller items you may want to be a little more
> precise.
A LOT more precise. The smaller, the more fragile the threads.
> I have a small Husky wrench that does inch lbs.
>
[quoted text clipped - 4 lines]
>
> I'l love to have a Snap-on model. I'm a real tool whore :-)
I own just one Snap-On tool, a 12mm six point combo wrench. Let me tell
you, after spending $35 on it, that thing gets the goose-down treatment.
I just like doing work properly. Tighten enough bolts and you eventually
acquire a "feel" for the "right" torque. This works in most cases, and
is necessary in situations where you have no room for the bulk of a
torque wrench. For the rest, I use the torque wrench.
I have neither broken a bolt nor had one come loose on me, since about
1985.
I did overtighten the auto tranny oil pan drain bolt (a very small bolt)
on my wife's '99 Tercel two years ago. The threads on the bolt shifted,
resulting in the need to replace the bolt. Luckily, the bolt threads
were softer than the pan threads, so a new bolt was all that was
required. I have been much more careful since.

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Tegger
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