I'm about to undertake a timing belt change on my Landrover Discovery 300tdi engine... But I've got a bit of a problem... Come time to tighten the belt, I need to pull 11nm on the tensioner. Service manual calls for a dial torque gauge, but at 250-500 dollars, it's not a tool I'm racing out to buy.
The common alternative suggestion is an old style, non mechanical deflecting beam torque wrench. The kind with two arms and a scale, where you pull and as the bar your pulling flexes the other stays straight and points to how much torque is being applied. It's a great, cheap alternative except that they're more or less unobtainium these days in Australia thanks to the rise of cheap clicker type torque wrenches. I've asked around the tool shops, family and friends, even a couple of old mechanics I know, but to no avail.
I've thought about setting one of my torque wrenches at 11nm doing A couple of test pulls to get a feel for how far/tight it will be and then bumping it up to 12nm and trying to hold it just before it clicks, but not sure I trust that much.
Can you use a spring scale? Like they use in shipping. You tug on one end, and when it sets to the 11nm, you tighten the bolt. Perhaps I don't understand the scenario right. But I've used this method to set the drag on brake rotors.
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But I had another look last night, searching for torque wrenches in the hope I might find a deflecting beam type wrench and managed to stumble upon a dial wrench for a good price, just hoping the seller gets back to me.
Tension in the fastener depends largely upon the amount of torque, the tightening, and the size of the thread. Generally, engineers will specify a thread size large enough to handle the anticipated stresses. For example, the M5 bolt of a water bottle cage bolt would not be a good choice for holding a crank. Even if the bolt were as tight as possible, it would not provide enough force to hold the arm secure to the spindle. The crank-to-spindle interface receives quite a lot of stress, making larger threads (M8, M12, M14) a better choice. The amount of pressure applied by a thread can be substantial in order to hold the joint secure. For example, a fully tightened crank bolt can provide over 14,000 Newton force (3,000 pounds force) as it holds the arm in place.
Torque for mechanics is simply a twisting or turning motion around the axis of the thread. This resistance can be correlated to, but is not a direct measurement of, fastener tension. Generally, the higher the rotational resistance, the greater tension in the threaded fastener. In other words, the more effort it takes to tighten a bolt, the tighter it is.
Torque is measured as a unit of force acting on a rotating lever of some set length. In the bike industry and elsewhere, the common unit used to measure torque is the Newton meter (abbreviated Nm). One Newton meter is a force of one Newton on a one meter long lever. Another unit sometimes seen is the Kilogram-centimeter (abbreviated kgf-cm), which is a kilogram of force acting on a lever one centimeter long. It is possible to convert between the various systems.
Also sometimes used in the United States is the inch-pound (abbreviated in-lb.).This is a force of one pound acting at the end of a lever (wrench) that is one inch long. Another torque unit used in the USA is the foot-pound (abbreviated ft-lb.), which is the force in pounds along a one-foot long lever. It is possible to convert between the two units by multiplying or dividing by twelve. Because it can become confusing, it is best to stick to one designation. The units given on the torque table here will be in inch-pounds.
Torque wrenches are simply tools for measuring resistance to rotation. There is a correlation between the tension in the bolt and the effort it takes to turn it. Any tool, even a torque wrench, should be used with common sense. A cross-threaded bolt will not properly tighten even with a torque wrench. The mechanic must be aware of the purpose of torque, and what torque and fastener preload are doing to the component joint. It is also important to consider thread preparation, which is discussed in detail in this article.
All figures in the table below are in Newton meters and inch-pounds. Note that some companies do not specify torque for certain components or parts. Contact the manufacturer for the most up to date specifications.
It should come as no surprise that Torque Angle is the measurement of choice for some engine components (the main example being connecting rods). When tightening fasteners by way of the torque angle method, the fastener is first preloaded to a specific torque. Next, a torque angle gauge (meter) is used to tighten the fastener to a specific angle. You can either use a specific torque angle gauge (similar to a torque wrench) or you can use a torque angle gauge attached to a breaker bar.
What makes torque angle superior to good old fashioned torque is that it is not affected by friction. Fellow OnAllCylinders contributor Jeff Smith provides an excellent overview of both torque angle and the use of the basic gauges, you can click here to read it.
OTC Tools has a half-inch drive torque angle gauge with a 360 degree scale (all of the adapters here have the same style of gauge face). In this case, the face is marked in 360 degree increments. This particular tool makes use of a L-shaped stop arm. The part number is OTC-4554.
As you can see, there are plenty of options when it comes to torque angle gauges (meters). Picking the right one for your toolbox depends upon your application and how often you need to use the tool.
High-quality pedals, for example Heusinkveld Ultimate, and a solid flex-free mounting solution like Simucube Mount, will have a large impact on your speed and consistency. A solid mounting solution is also essential to ensure that all the details from your wheelbase are transmitted through to your hands, with no dampening from flex in the mount.
In terms of hardware, there are three main factors that combine along with the software. These factors influence how a wheel will feel and perform in terms of both, the fidelity and the overall torque delivery or power delivery that you feel through your hands.
These are the next step up in terms of fidelity and torque, but this comes at a higher price point. Similar to gear-driven wheelbases, belt-driven use a lower torque motor than a Direct Drive wheelbase and have some gearbox to increase the toque delivery at the wheel itself.
Rather than using physical gears that interface directly with each other, they either use a tooth or a ribbed belt and gears to get the job done. These generally feel smoother than cog-driven wheelbases; however, it does introduce what can best be described as a dampening effect caused by the elasticity in the belt itself. This reduces the overall fidelity in what you feel through the steering wheel compared to a Direct Drive wheelbase. For example, road textures feel less defined and a little less real; sharp changes in direction and understeer can feel a little bit smoother than they perhaps should.
All Simucube 2 wheelbases use servo motors which are generally regarded as the best type of motor to use for sim racing due to their efficiency and ability to maintain high torque at higher rotational speeds.
RacingMeter for Torque Pro is a paid app for Android published in the System Maintenance list of apps, part of System Utilities.
The company that develops RacingMeter for Torque Pro is SENSADIGIT. The latest version released by its developer is 1.8.5. This app was rated by 6 users of our site and has an average rating of 3.8.
To install RacingMeter for Torque Pro on your Android device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2020-01-29 and was downloaded 283 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the RacingMeter for Torque Pro as malware as malware if the download link to com.sensadigit.racingmeterfortorque is broken.
How to install RacingMeter for Torque Pro on your Android device:
v1.8.4:
- Added four stopwatches with configurable speed thresholds.
- Added two dynamic dial styles.
- Added three automatic range modes for the RPM LEDs.
- Added degressive thresholds mode depending the current gear for the RPM LEDs.
- Improved some textures.
- Fixed minor issues.
Feel everything through an optimized motor design, offering practically zero torque ripple, notching or cogging. Combined with powerful torque delivery, hard braking, curbs, and drifts are clearer and stronger than ever before.
MOZA Pit House Control Suite allows for maximum customization of your racing experience. See the status of each device, set maximum turn angle, force feedback, pedal travel, LED indicators, and much more.
The rotor of the R21 is a triple staggered slanted pole design commonly found in electric motor vehicles and ensures a balanced vibration-free motor. The combination of a high copper space factor and triple staggered slanted pole rotor results in a motor that delivers increased torque and dynamic range detail and greatly reduces cogging and torque ripple over traditional sim racing motors.
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