"Incremental Equalized Torque"

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Posted by OnBelay (76.84.26.84) on 06:28:53 07/17/08

In Reply to: Re: Never used one for the fuel filter. posted by gorilla bob

: Had an old mechanic show me a trick once. he would put the open end wrench on a set of flats on the nut and try and loosen, then move to the next set of flats, then the third and then back to the original again, and keep doing it. after a few times, the nut would come loose. (obviously only works where you can get all around the nut.) but interesting how it worked so well.

A few lifetimes ago, while working as a DM for one of the tool truck companies, I was able to tour a manufacturing plant that made wrenches and other hand tools. "Incremental equalized torque" was the term used by the engineer she was describing the hows and whys of the way a line wrench fits around the nut. If you read Gorilla Bob's description carefully, you can picture how this technique is accomplished in one step, by having pressure placed on more than one flat of the nut at a time.

One of the other benefits of a crow foot style line wrench is that I have found a number of places where it was hard to get a "regular" wrench onto the fitting because exhaust or frame components being too close. With the crow foot, you can slide it onto the line, up onto he fitting, then attach the ratchet, or an extension and ratchet. Yes, a little spendy, but when you want to do it right and only do it once...

Follow Ups:

Hello11 - Nurgigree 05:01:42 09/28/08 (0)
Re: "Incremental Equalized Torque" - Ben 12:28:45 07/18/08 (7)
- Re: "Incremental Equalized Torque" - Frankenbiker 15:53:16 07/18/08 (6)
  - Re: "Incremental Equalized Torque" - Ben 18:13:36 07/21/08 (5)
    - Harbor Freight - Marty 00:42:31 07/22/08 (4)
      - Re: Harbor Freight - Steve in id 20:19:04 07/22/08 (1)
        
        Re: Harbor Freight - Ben 14:51:59 07/24/08 (0)
      - Re: Harbor Freight - Ben 10:34:20 07/22/08 (1)
        
        Re: Harbor Freight - Frankenbiker 12:40:48 07/22/08 (0)

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Comments:	: : Had an old mechanic show me a trick once. he would put the open end wrench on a set of flats on the nut and try and loosen, then move to the next set of flats, then the third and then back to the original again, and keep doing it. after a few times, the nut would come loose. (obviously only works where you can get all around the nut.) but interesting how it worked so well. : : A few lifetimes ago, while working as a DM for one of the tool truck companies, I was able to tour a manufacturing plant that made wrenches and other hand tools. "Incremental equalized torque" was the term used by the engineer she was describing the hows and whys of the way a line wrench fits around the nut. If you read Gorilla Bob's description carefully, you can picture how this technique is accomplished in one step, by having pressure placed on more than one flat of the nut at a time. : : One of the other benefits of a crow foot style line wrench is that I have found a number of places where it was hard to get a "regular" wrench onto the fitting because exhaust or frame components being too close. With the crow foot, you can slide it onto the line, up onto he fitting, then attach the ratchet, or an extension and ratchet. Yes, a little spendy, but when you want to do it right and only do it once... :
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