<div dir="ltr"><div> I only have two 3/8" drive 5-75 click type , on is an older sears with numbers in a window and onee I got at auto zone which has the scale micrometer. One 3/8" bean type 0-800 in lb and 0 90 NM . and a 1/2" beam type for the lug nuts , also auto zone. And a 1/4" 20-200 in lb. <br></div><div><br></div><div> My main concern was torquing the runners to the heads. I did use the old sears set at 14 ft lbs and it clicked with very little effort, meaning it felt right. I wanted to try and compare each just to see what they actually read. . <br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, Jul 2, 2023 at 1:42 PM Jim Adney <<a href="mailto:jadney@vwtype3.org">jadney@vwtype3.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">On 2 Jul 2023 at 10:09, William Jahn wrote:<br>
<br>
> Is it true if you use one that is 0-75 ft lbs and you torque a nut to 14<br>
> ft lb it will be at a much higher valve <br>
<br>
I don't think that's generally true. It's probably true that all manufacturers <br>
calibrate their torque wrenches at one value, but the good ones will make an <br>
effort to make their wrenches linear. None will be perfect, but it's probably <br>
impossible to predict in advance what imperfections remain.<br>
<br>
It's probably true that most makers calibrate their wrenches near the top end <br>
of their range. What happens below that is probably more random than <br>
systematic.<br>
<br>
If the choice was mine, I would do the calibration somewhere between 66% <br>
and 90% of full scale. 75% seems like a nice happy medium.<br>
<br>
-- <br>
*******************************<br>
Jim Adney, <a href="mailto:jadney@vwtype3.org" target="_blank">jadney@vwtype3.org</a><br>
Madison, Wisconsin, USA<br>
*******************************<br>
<br>
_______________________________________________<br>
VWType3.Org mailing list - <a href="mailto:type3@vwtype3.org" target="_blank">type3@vwtype3.org</a><br>
To unsubscribe or change subscription options, visit:<br>
<a href="http://lists.vwtype3.org/listinfo.cgi/type3-vwtype3.org" rel="noreferrer" target="_blank">http://lists.vwtype3.org/listinfo.cgi/type3-vwtype3.org</a><br>
If you need more help, contact: <a href="mailto:gregm@vwtype3.org" target="_blank">gregm@vwtype3.org</a><br>
</blockquote></div>