Questions tagged [torque]

Measure of the force applied to an object that causes it to rotate.

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13 views

How to accumulate torque of multiple independent gears? [migrated]

I did not find any answers to this simple problem across the web, maybe seeking help in this forum helps: As an example, let's assume we have multiple windmills, each of them producing torque, but ...
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6answers
4k views

Why tighten down in a criss-cross pattern?

I believe almost everyone working on a car in any capacity has heard this, many things should be tightened down in a criss-cross pattern. Why? What is the rationale behind it? I can imagine several ...
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What would cause a “muscle car” to not be able to drive up a hill?

I was at an event recently where the employees were guiding cars into a grassy field to park. Cars ranging from Toyota Camrys to Chevy Suburbans were driving up a small hill that was around 3-4 feet ...
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62 views

Strut Torque Specs for 2008 Toyota Camry Hybrid

Can anybody provide what the Torque specs are for the front struts on a 2008 Toyota Camry Hybrid? Google searches provide conflicting and incomplete information. Was hoping someone had a repair ...
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1answer
44 views

Vehicle inertia [closed]

Usually we say that during the start we need high torque to overcome the inertia where as less torque as inertia reduces during its motion. How can one say that inertia changes when it is purely ...
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1answer
46 views

Valve cover gasket; Torquing the cover

I am taking notes on the proper installation of a valve cover gasket. I plan on using Permatex Ultra Black RTV silicone in the process. One suggestion I read is, after applying the gasket, silicone ...
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1answer
74 views

Does Torque Steer damage The Car?

Other than the obvious uneven/premature wear of the tires, is there any damage that torque steer may cause to the car's drivetrain or surrounding components?
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0answers
46 views

How tight should I make body panels?

Car is a civic vti 99. I don't believe body panels have a recommended torque setting, am I right? If you fit body parts loosely or tightly will both be ok or might they fly off when driving? I've ...
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1answer
71 views

How to Correctly Prep for Dry or Wet Torque Specifications

Kind of two questions, but simple. If a dry torque specification is given for a fastener, what can I use to properly clean the threads before tightening to torque? If a wet torque specification ...
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2answers
803 views

Relationship between torque, power, specific fuel consumption, and AFR

How does Torque, power, and specific fuel consumption change with AFR? And why is it so? I found graphs relating these in books as well as websites but I couldn't find any good explanations.I have ...
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2answers
130 views

How can you identify if a wheel hub stud is fatigued or stretched?

I know you can tell if a wheel hub stud is damaged based on the condition of its threads. However I have also seen people say you cannot tell the condition of a stud based on visual inspection alone, ...
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1answer
32 views

Torsion on shafts

Let us say that torque is applied on the free end of cantilever beam will the angle of twist will be same throughout the shaft??Also in series connection of shafts the total angle of twist is given as ...
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2answers
2k views

How can a model with a smaller engine produce more power?

I am from India, here we have Ford Ecosport. Tt has different models, out of which one model with less cc produces more power than a higher cc model (999cc and 125ps) & (1497cc 123ps). How is this ...
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1answer
589 views

what is a Shock Absorber's Tightening Torque?

What number should I adjust my Torque Wrench to when I torque a shock absorber? the repair manual says 98.1 ~ 117.7N.m so should I adjust it to 98 or 117? I have to change a leaking shock absorber ...
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1answer
3k views

What fasteners should not be loosened using an impact wrench, and why?

Which bolts and other fasteners should not be loosened using an impact wrench? For example, I've heard that it's not generally recommended to loosen spark plugs with an impact. Nor is it recommended ...
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1answer
67 views

Torque scredriver for plastic part [closed]

I use 3D printing to print parts made of pure polypropylene. These parts have some holes that I tap in order to screw some plastic Luer adaptors: https://www.coleparmer.com/i/cole-parmer-female-luer-...
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3answers
3k views

Does breakaway torque match tightening torque?

When you don't know the correct torque for a fastener does the torque required to loosen it equal the correct torque to tighten it to? Presuming it's not rusted on, that is. Or, if you can't use it ...
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118 views

Torque Calculation

I need to know about the torque required for my electric Motorcycle Conversation. Weight is around 200Kg (Including Rider) Tyre diameter is 20 inches Acceleration required around 0-100kmph in 15 sec.....
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4answers
119 views

Work over time; humans versus automobiles

I've been doing some research lately on torque and horsepower to understand how they are connected to one another. Take my car, a 2.0 TDI, outputs 390 Nm torque. 390 Nm alone without considering an ...
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0answers
2k views

When does engine lugging occur

Recently I was driving on the autobahn in my 2011 Audi A4 TDi with stage 1 tune to 177 HP / 390 Nm. Typically I would be in 6th gear from 90 km/t and above, leaving the RPM quite low. This is unless ...
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4answers
392 views

Cotter pin question

When you're tightening a nut that uses a cotter pin, do you only tighten enough so the pin can slide in or can you tighten further as well? I drew a picture to illustrate what I'm asking. Is the ...
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3answers
2k views

How to increase low end torque in motorcycle?

I have Honda CB Trigger 150cc 14BHP@8500 & 12.5NM@6500. Whenever I ride in higher altitudes (above 3000m), Its power decreases gradually. Is there a way to increase the low end torque without ...
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1answer
364 views

How does turning a single bolt 45 degrees and then another 15 degrees differ from turning it 60 degrees?

The torque specification for tightening a crank bolt in some car is Tighten bolt 95 Nm + 45° + 15° How does tightening 45 degrees and then another 15 degrees differ from tightening 60 degrees? ...
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1answer
134 views

Avenger 220 - pickup become Unusual After 10000 km

I often ride long ride on Avenger Cruise(150-300 Km) I have done all the Service as per manual and Also done extra service from Authorized center. but After last Service i m feeling that Avenger ...
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3answers
530 views

Why are engines mounted so that torque goes sideways?

When I see someone rev the engine on their car, it is typical for one side to drop a little in relation to the other. I understand that this is due to the torque of the engine. Why isn't the engine ...
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1answer
757 views

Connecting rod bearing torque specs 2003 Ford Mustang

Anyone know any good websites to check for torque specs? I have looked on library.alldatapro and google, and I couldnt find it. Are there any reliable websites out there that anyone knows with car ...
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1answer
122 views

Why did they add angles to torquing

Just watching a bearing hub replacement which required a 46 pound-feet of torque with an additional 120 degrees to get it done proper. Why did they add the angle torque addition instead of just ...
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2answers
4k views

Impact sockets with a Torque wrench reduce accuracy?

So I have read that impact sockets are generally made of Chrome Molybdenum and are supposed to be a little softer so they can absorb the impact of an impact gun, whilst Chrome sockets are harder and ...
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2answers
268 views

Torque specification thread lubricant best-practice as specified by manufacturers

I've been working recently from a Honda service manual. There are, of course, torque specifications documented for various fasteners used throughout the vehicle. I cannot find, however, any mention of ...
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2answers
148 views

Is there is a relation between temperature of engine and the torque

In my previous place, I used to start my Gsxr-750 and get a flat street. Without waiting the engine get hot. It used to work very well. Recently I move to a new apartment. In this new apartment when ...
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1answer
56 views

Digital torque adapters minimum setting

I'm considering purchasing a digital torque adapter, so I can measure torque with my current ratchet wrenches. I find it curious that almost all the adapters have a minimum setting of around the 20 ft/...
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2answers
439 views

25Nm vs 28Nm - How accurate should a torque wrench be?

I am soon doing a coolant change on my car, including draining the coolant from the block using the drain plug, and I have heard of a few people apparently snapping these off due to over torquing them,...
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1answer
206 views

How to re-torque a partially loosened overhead camshaft?

While doing a timing belt service on my 17 year-old, 57K-mile truck (DOHC), I was having a very hard time getting it to let go of the front oil seals on the intake camshafts.1 I eventually realized ...
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1answer
88 views

Are torque sensors used to reduce cam belt failure damage?

The water pump bearings on a friend's car recently seized, causing the timing belt to jump off the pulley, lose tension, lose timing, and the engine to munch its valves. Could this failure have been ...
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2answers
2k views

Why do service manuals specify a range for torque? Are there any reasons for being at one end or the other?

The service manual for my vehicle specifies torque for most nuts and bolts in ranges. Are there any reasons to be at the lower or higher end of the range, or somewhere in between? Different expected ...
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3answers
2k views

Torque wrench or impact gun on large bolts

For very large bolts (example: axle nut) I often see mechanics just use an impact wrench, typically they let it "rattle" a certain time and then they consider the bolt tightened. Is this also common/...
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6answers
3k views

Are there “standard” torque values for fasteners?

For "normal" applications (say attaching the oil pan or valve cover) are there standard or typical torque values for fasteners? I'm wondering if it is possible to use a rule of thumb for those ...
2
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1answer
3k views

Installing Moog stabilizer / sway bar links on 2002 Ford Focus

I am installing both front sway bar links on my 2002 Ford Focus SE wagon. I ordered a pair of "MOOG K80066 Stabilizer Bar Link Kits". They did not come with any instructions, and I am totally new to ...
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5answers
4k views

Why would I want to measure torque while loosening a bolt or nut?

An answer to a question asking about torque wrench maintenance mentions to not use a particular kind of torque wrench for loosening bolts. This got me thinking. I would think it'd be preferable to ...
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1answer
640 views

Is each turn with a beam torque wrench additive?

If I need to turn a bolt to 50 ft-lb with a beam torque wrench, and I turn it until the needle points to 20, then I need to stop applying pressure for some reason. Do I just apply another 30 ft-lb ...
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4answers
4k views

“Always Replace” (torque-to-yield) Bolts

I'm working on a VW Jetta and have pulled one of the suspension ball joints to replace a drive shaft. The three bolts holding the ball joint to the lower control arm are marked in the Bentley service ...
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2answers
5k views

Where can I get my torque wrench calibrated?

I have a couple of torque wrenches and a torque screwdriver that I've had for some years. None has ever been recalibrated and although they haven't been abused and they seem to have good agreement ...
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2answers
277 views

Given the following scenario, what type of engine (diesel or petrol) allows for greater acceleration and/or top speed?

I know this isn't exactly a Motor Vehicle Maintenance & Repair related question but this seems the most appropriate StackExchange community to ask it. I apologize if I am being wrong in my ...
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2answers
3k views

Increasing rear sprocket size for torque gains, will a dyno tune be required?

In order to get some mid range and torque gains, I've decided to replace my rear sprocket with a bigger one. I asked a friend of mine (experienced motorcyclist, been riding for decades) and he said I ...
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2answers
702 views

Torque reduces gradually after certain RPM

I just know the plain definition of the Torque. Torque: Definied as the force applied to the object to rotate on its axis The torque will be increased only upto a certain RPM and it will gradually ...
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1answer
1k views

What is the correct procedure for removing and replacing the oil pan on a 2006 Corolla?

I believe there is a clog in the oil pan that is preventing me from fully draining it. I'm too cheap to buy a copy of the Hayne's manual for the 2006 Toyota Corolla. The specific information I am ...
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0answers
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OBD-II Enhanced PIDs

I was looking at the Torque Pro app and in the section where there is a list of custom PIDs that can be used, one is a Transmission Temperature PID. But it is exactly same as Engine Coolant ...
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1answer
349 views

Please explain Horsepower and Torque [duplicate]

I have been trying to understand both of these for a while. While I kind of understand them for some reason I feel like I'm missing the point. Simple explanations leave me confused and longer ...
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3answers
22k views

How to lock crank shaft while torquing central screw?

It seems I have to replace the oil seal at the pulley-side of my crankshaft. According to the technical manual of my car, the central screw should be torqued with 120-145Nm. I don't know how much ...
6
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3answers
2k views

Uses of small sized 1/2" drive sockets

I'm currently a first year apprentice and building my tool kit as I go. I see often larger socket sets include 1/2" drive sockets ranging from 8 or 10mm. Is there a reason that 1/2" drive sockets of ...