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techtalk:ref:tools123 [2018/07/26 03:31] hippysmack [Beam Type Torque Wrenches] |
techtalk:ref:tools123 [2020/04/28 21:23] hippysmack [General Torque Specs] |
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| - | * **While applying torque**, always use slow even motions. Applying torque too fast leads to fooling the torque wrench (and / or your eyes) before torque is actually reached. Of course, this may not be as big of an issue on cover bolts as it would be on head bolts. Establish a pattern to follow every time to condition yourself not to make a mistake when it's counted. | + | * **While applying torque**, always use slow even motions. Applying torque too fast leads to fooling the torque wrench (and / or your eyes) before torque is actually reached. Establish a pattern to follow every time to condition yourself not to make a mistake when it's counted. |
| * The clicker type torque wrench can click too fast or you can end with a temporary visual mistake with a beam wrench ((hippysmack from the XLFORUM http://xlforum.net/forums/showthread.php?t=1959533)) ((Article by Oldrump1 from the XLFORUM http://xlforum.net/forums/showthread.php?t=1959533)) | * The clicker type torque wrench can click too fast or you can end with a temporary visual mistake with a beam wrench ((hippysmack from the XLFORUM http://xlforum.net/forums/showthread.php?t=1959533)) ((Article by Oldrump1 from the XLFORUM http://xlforum.net/forums/showthread.php?t=1959533)) | ||
| * The 1/4" clicker will go way beyond torque when used too fast. By the time you hear the click, your still turning which could result in damaged bolts, bolt heads and even cracking the piece your working on. | * The 1/4" clicker will go way beyond torque when used too fast. By the time you hear the click, your still turning which could result in damaged bolts, bolt heads and even cracking the piece your working on. | ||
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| ====== General Torque Specs ====== | ====== General Torque Specs ====== | ||
| - | * Torque specs are usually given in a range (60-70 ft / lbs for example). The fastener should be torqued to the higher figure initially. Then on future torque 'checks', use the lower figure. This allows you to tell if the fastener has maintained needed torque without 'breaking' the bond which keeps it from backing off. ((Wizwill of the XLFORUM http://xlforum.net/forums/showthread.php?t=27701&highlight=torque+wrench&page=13)) | + | * Torque specs are usually given in a range (60-70 ft / lbs for example). The fastener should be torqued to the lower figure initially. Then on future torque 'checks', use the lower figure. This allows you to tell if the fastener has maintained needed torque without 'breaking' the bond which keeps it from backing off. ((Wizwill of the XLFORUM http://xlforum.net/forums/showthread.php?t=27701&highlight=torque+wrench&page=13)) |
| * In lieu of having torque specs at hand, below are general torque specs for different fasteners. However, nothing takes place of manufacturer torque specs for your specific applications. The torque numbers reflect pressures the bolts can take which doesn't take into account the amount of clamp force for the piece(s) you are clamping (or an aluminum engine). So, it's hard to trust the charts that give a torque values for bolts of a certain size, and then do not specify if the bolt is going into steel or aluminum. With steel bolts going into aluminum (engines), 'ya gotta be careful. ((IronMick of the XLFORUM http://xlforum.net/forums/showthread.php?t=2048954&highlight=torque+wrench&page=2)) | * In lieu of having torque specs at hand, below are general torque specs for different fasteners. However, nothing takes place of manufacturer torque specs for your specific applications. The torque numbers reflect pressures the bolts can take which doesn't take into account the amount of clamp force for the piece(s) you are clamping (or an aluminum engine). So, it's hard to trust the charts that give a torque values for bolts of a certain size, and then do not specify if the bolt is going into steel or aluminum. With steel bolts going into aluminum (engines), 'ya gotta be careful. ((IronMick of the XLFORUM http://xlforum.net/forums/showthread.php?t=2048954&highlight=torque+wrench&page=2)) | ||
| * Good engineering books, covering fasteners, will describe the situation in full (bolt diameter, thread pitch, bolt coatings, lubrication used etc.). A lot more information than most of us ever use. Also, in the back of some motorcycle manuals you sometimes will find charts listing common bolts and torque settings. Best to take them with a grain of salt, however. ((Ferrous Head of the XLFORUM http://xlforum.net/forums/showthread.php?t=2048954&highlight=torque+wrench&page=2)) | * Good engineering books, covering fasteners, will describe the situation in full (bolt diameter, thread pitch, bolt coatings, lubrication used etc.). A lot more information than most of us ever use. Also, in the back of some motorcycle manuals you sometimes will find charts listing common bolts and torque settings. Best to take them with a grain of salt, however. ((Ferrous Head of the XLFORUM http://xlforum.net/forums/showthread.php?t=2048954&highlight=torque+wrench&page=2)) | ||
